General Awareness PYQs

The correct answer is AgCl and AgBr.

Key Points

• Silver Bromide (AgBr) and Silver Chloride (AgCl) are the primary light-sensitive chemicals used in black and white photography. They belong to a group of compounds known as silver halides.
• When these compounds are exposed to light, they undergo a photochemical decomposition reaction. In this process, the silver halide crystals absorb photons, causing the silver ions to be reduced to metallic silver.
• The chemical equation for the decomposition of Silver Chloride is: 2AgCl(s) + Sunlight → 2Ag(s) + Cl₂(g). The white silver chloride turns greyish due to the formation of silver metal.
• The chemical equation for Silver Bromide is: 2AgBr(s) + Sunlight → 2Ag(s) + Br₂(g). In this reaction, the pale yellow silver bromide decomposes into metallic silver and bromine gas.
• In the photographic process, the areas of the film exposed to more light contain more silver metal, which creates the dark parts of the negative, while unexposed areas remain clear after processing.

 Additional Information

• Silver Halides:
• These are compounds formed between Silver (Ag) and Halogens (Group 17 elements like Chlorine, Bromine, and Iodine).
• AgBr is the most widely used halide in photographic emulsions because it has the optimal level of sensitivity to light.
• AgCl is often used in photographic printing paper rather than the film itself, as it is less sensitive than bromide but produces finer detail.
• Photodecomposition:
• This is a type of decomposition reaction where a single reactant breaks down into two or more products in the presence of photons (light energy).
• This reaction is endothermic in nature as it requires the absorption of energy to break chemical bonds.
• Aside from photography, photolysis plays a critical role in ozone layer formation and photosynthesis in plants.

The correct answer is The Malabar Coast.

Key Points

• The Malabar Coast constitutes the southwestern shoreline of the Indian subcontinent, primarily spanning the state of Kerala and the coastal regions of Karnataka.
• It is geographically distinguished by its extensive backwaters, locally referred to as Kayals, which are a chain of brackish lagoons and lakes linked by man-made and natural canals.
• The formation of these lagoons is a result of the depositional work of ocean currents and waves, which created barrier islands that trapped the discharge of numerous rivers flowing down from the Western Ghats.
• Vembanad Lake, situated on this coast, is the longest lake in India and serves as the largest wetland system in the country, covering an area of approximately 2,033 square kilometers.
• These backwaters are critical for the local economy, supporting inland navigation, traditional fishing, and the unique Kuttanad farming system, where cultivation happens below sea level.
• Geologically, the Malabar Coast is a submergent coast in its southern reaches but shows evidence of emergence in other parts, characterized by narrow alluvial plains and sand dunes.

 Additional Information

• The Coromandel Coast
• This refers to the southeastern coastal region of India, stretching from the False Divi Point to Kanyakumari.
• Unlike the west coast, it is broader and features large deltas formed by the Kaveri, Krishna, and Godavari rivers.
• It is notably famous for receiving heavy rainfall during the North-East Monsoon or Retreating Monsoon season.
• The Northern Circars
• This is a geographical division of the Eastern Coastal Plain lying between the Mahanadi and Krishna rivers.
• It encompasses the coastal regions of Odisha and northern Andhra Pradesh, characterized by the Chilika Lake, the largest brackish water lagoon in India.
• The Andhra Coast
• Part of the Eastern Coastal Plain, it is known for its fertile alluvial soil and the presence of the Kolleru Lake, a major freshwater lake located between the Krishna and Godavari deltas.

The correct answer is Article 76.

Key Points

• Article 76 of the Indian Constitution deals with the appointment, duties, and tenure of the Attorney General of India.
• The Attorney General is appointed by the President of India and acts as the Chief Legal Advisor to the Government of India.
• To qualify for this post, a person must be qualified to be appointed as a Judge of the Supreme Court, implying they must be a citizen of India with specific judicial or legal experience.
• The Attorney General holds office during the pleasure of the President, meaning there is no fixed tenure mentioned in the Constitution.
• Under this article, the Attorney General has the right of audience in all courts in the territory of India and the right to participate in Parliamentary proceedings without the right to vote.

 Additional Information

• Article 165:
• Provides for the appointment of the Advocate General for the State.
• The Advocate General is the highest legal officer at the state level, appointed by the Governor.
• Article 211:
• Imposes a restriction on discussion in the State Legislature.
• It mandates that no discussion shall take place in the Legislature of a State with respect to the conduct of any Judge of the Supreme Court or of a High Court in the discharge of his duties.
• Article 240:
• Vests the President with the power to make regulations for the peace, progress, and good government of certain Union Territories.
• This includes territories like the Andaman and Nicobar Islands, Lakshadweep, and Dadra and Nagar Haveli and Daman and Diu.

The correct answer is Shirley Botchwey.

Key Points

• Shirley Ayorkor Botchwey is the current Commonwealth Secretary-General, having been elected to the position during the Commonwealth Heads of Government Meeting (CHOGM) held in Samoa in October 2024.
• She officially assumed office in April 2025, succeeding Baroness Patricia Scotland, and made history as the first African woman to lead the 56-nation intergovernmental organization.
• In September 2025, she presided over the 25^th Commonwealth Foreign Affairs Ministers Meeting (CFAMM) in New York, which traditionally takes place on the sidelines of the United Nations General Assembly (UNGA).
• During this high-level meeting, Shirley Botchwey advocated for climate finance, youth empowerment, and the economic resilience of Small Island Developing States (SIDS), which constitute a significant portion of the Commonwealth membership.
• As the leader of the Commonwealth Secretariat, her role involves managing the administrative functions of the organization and facilitating cooperation between member states on global issues.

 Additional Information

• Patricia Scotland:
• She served as the 6^th Commonwealth Secretary-General from 2016 to 2025.
• A legal expert from Dominica, she was the first woman to hold the office and championed the Commonwealth Blue Charter for ocean protection.
• Ngozi Okonjo-Iweala:
• She is the Director-General of the World Trade Organization (WTO), appointed in March 2021.
• A renowned Nigerian economist, she previously served as Nigeria's Finance Minister and Foreign Minister, but has not held the position of Commonwealth Secretary-General.
• Kamalesh Sharma:
• An Indian diplomat who served as the 5^th Commonwealth Secretary-General from 2008 to 2016.
• He was instrumental in the adoption of the Commonwealth Charter in 2012, which outlines the core values of the organization.

The correct answer is Three-tier.

Key Points

• The Balwantrai Mehta Committee was appointed by the Government of India in January 1957 to examine the working of the Community Development Programme (1952) and the National Extension Service (1953).
• The committee submitted its report in November 1957 and recommended the establishment of the scheme of Democratic Decentralization, which eventually came to be known as Panchayati Raj.
• The specific recommendation was for a three-tier Panchayati Raj system consisting of the Gram Panchayat at the village level, the Panchayat Samiti at the block level, and the Zila Parishad at the district level.
• The Gram Panchayat was to be constituted with directly elected representatives, whereas the Panchayat Samiti and Zila Parishad were to be formed with indirectly elected members.
• The committee envisioned the Panchayat Samiti as the executive body and the Zila Parishad as the advisory, coordinating, and supervisory body, chaired by the District Collector.
• Following these recommendations, Rajasthan became the first state to adopt the system, inaugurated in Nagaur district on October 2, 1959, by the then Prime Minister Jawaharlal Nehru.

 Additional Information

• Two-tier system:
• This was recommended by the Ashok Mehta Committee in 1978, which suggested a Zila Parishad at the district level and a Mandal Panchayat (representing a group of villages) to replace the three-tier structure.
• Four-tier system:
• The G.V.K. Rao Committee (1985) observed that the Panchayati Raj had become grass without roots due to bureaucratization and suggested a four-tier structure including State-level Council, Zila Parishad, Mandal Panchayat, and Gram Sabha.
• L.M. Singhvi Committee (1986):
• This committee recommended that Panchayati Raj institutions should be constitutionally recognized and protected to ensure regular elections and financial autonomy.
• 73^rd Constitutional Amendment Act, 1992:
• This act gave constitutional status to the Panchayati Raj system, mandating a three-tier system for all states with a population of over 20 lakh, adding Part IX and the Eleventh Schedule to the Constitution of India.

The correct answer is IIT Madras.

Key Points

• Coal India Limited (CIL), a Maharatna Public Sector Undertaking, has partnered with the Indian Institute of Technology Madras (IIT Madras) to establish the Coal India Limited Centre for Sustainable Energy (CILCSE).
• The primary objective of this collaboration is to drive research and development in sustainable energy solutions, addressing the global need for cleaner energy and decarbonization.
• The center focuses on specialized domains such as Carbon Capture, Utilization, and Storage (CCUS), Green Hydrogen, and Coal Gasification to ensure energy security while minimizing environmental impact.
• This initiative is strategically aligned with the Government of India's vision of achieving Net Zero emissions by 2070 and supports the objectives of the National Green Hydrogen Mission.
• The partnership facilitates an industry-academia interface, allowing CIL to leverage the technical expertise of IIT Madras to transition from a coal-centric company to a diversified energy entity.

 Additional Information

• Coal India Limited (CIL):
• It is the largest coal producer in the world and functions under the Ministry of Coal, headquartered in Kolkata, West Bengal.
• CIL is increasingly investing in solar power and renewable energy projects to transition toward a sustainable business model.
• IIT Madras:
• Located in Chennai, it has consistently maintained the top rank in the Engineering category of the National Institutional Ranking Framework (NIRF).
• The institute is renowned for its IIT Madras Research Park, which fosters innovation and start-up ecosystems in deep-tech and energy sectors.

The correct answer is Goal 7.

Key Points

• Sustainable Development Goal 7 (SDG 7) is one of the 17 goals established by the United Nations in 2015 as part of the 2030 Agenda for Sustainable Development.
• The primary mission of Goal 7 is to ensure universal access to affordable, reliable, sustainable, and modern energy for all individuals globally by the year 2030.
• It targets a significant increase in the global share of renewable energy sources, such as solar, wind, and geothermal power, to transition away from fossil fuels.
• Another critical objective is doubling the global rate of improvement in energy efficiency, which involves optimizing energy consumption across industrial, transportation, and residential sectors.
• Access to clean energy is considered a fundamental driver for progress in other areas, including poverty reduction, food security, health, and climate mitigation.
• The goal also emphasizes international cooperation to facilitate access to clean energy research and technology, including advanced fossil-fuel technologies with lower emissions.

 Additional Information

• Sustainable Development Goal 5:
• Focuses on achieving gender equality and empowering all women and girls.
• Aims to end all forms of discrimination, violence, and harmful practices like forced marriage and female genital mutilation.
• Sustainable Development Goal 9:
• Concentrates on building resilient infrastructure, promoting inclusive and sustainable industrialization, and fostering innovation.
• It encourages scientific research and upgrades the technological capabilities of industrial sectors in all countries.
• Sustainable Development Goal 13:
• Urges taking immediate and collective action to combat climate change and its devastating environmental impacts.
• Includes targets for strengthening resilience and adaptive capacity to climate-related hazards and natural disasters.

The correct answer is Convex Lens.

Key Points

• Hypermetropia, commonly referred to as long-sightedness, is a refractive defect of the eye where light rays from nearby objects do not converge soon enough and instead focus at a point behind the retina.
• This condition occurs when the axial length of the eyeball is too short or the crystalline lens lacks sufficient curvature, resulting in a focal length that is too long for the eye's physical dimensions.
• A Convex Lens is a converging lens that is thicker at the center than at the edges. It works by bending incoming light rays inward before they reach the eye's natural lens.
• By adding a convex lens, the overall optical power of the eye is increased. This additional convergence ensures that the focal point is pulled forward and placed precisely on the retina, allowing for clear near vision.
• The power of the corrective lens required is measured in Dioptres (D) and is expressed as a positive value for Hypermetropia.

 Additional Information

• Concave Lens:
• This is a diverging lens used to correct Myopia (short-sightedness).
• In a myopic eye, light focuses in front of the retina because the eyeball is too long or the lens is too curved; the concave lens spreads the rays out to shift the focus back onto the retina.
• Cylindrical Lens:
• These lenses have different powers in different meridians and are primarily used to correct Astigmatism.
• Astigmatism is caused by an irregular, non-spherical curvature of the cornea or lens, leading to distorted images.
• Photochromic Lenses:
• These are specialized lenses that darken when exposed to Ultraviolet (UV) radiation and clear up in the absence of UV light.
• They typically contain silver halide molecules and are used for light sensitivity and sun protection rather than specific refractive correction.

The correct answer is Article 235.

Key Points

• Article 235 of the Indian Constitution explicitly grants the High Court the power of control over subordinate courts within its territorial jurisdiction.
• This provision is located in Part VI, Chapter VI of the Constitution, which specifically addresses the structure and administration of Subordinate Courts.
• The scope of 'control' vested in the High Court includes administrative matters such as the posting, promotion, and the grant of leave to individuals belonging to the judicial service of a State.
• It applies to all judicial officers holding posts inferior to the rank of District Judge, ensuring that their career progression and disciplinary matters are handled by the judiciary rather than the Executive.
• The Supreme Court of India has historically interpreted this article to include disciplinary control, which allows the High Court to conduct inquiries and recommend transfers or removals to protect judicial independence.

 Additional Information

• Article 308:
• It is the opening article of Part XIV, which deals with Services under the Union and the States.
• It provides the interpretation of the term 'State' specifically for the provisions contained within this part of the Constitution.
• Article 115:
• It pertains to Financial Matters of the Union Government within Part V.
• It details the procedure for Supplementary, additional or excess grants when the funds authorized for a service are found insufficient or a need arises for a new service.
• Article 107:
• It outlines the provisions as to introduction and passing of Bills in the Parliament.
• It establishes that a Bill (excluding Money Bills) may originate in either the Lok Sabha or the Rajya Sabha and must be agreed upon by both Houses to proceed.
• Article 233:
• This related article deals with the appointment of District Judges by the Governor of the State in consultation with the High Court.

The correct answer is Correcting balance of payment imbalances and controlling inflationary pressures.

Key Points

• The New Economic Policy (NEP) launched in July 1991 by the Indian government was a response to a severe economic crisis characterized by a massive Balance of Payments (BoP) deficit and skyrocketing inflation.
• The policy framework was broadly divided into two sets of measures: Stabilisation Measures and Structural Reform Measures.
• Stabilisation Measures were short-term in nature and were intended to correct the immediate weaknesses of the economy, specifically by restoring macro-economic stability.
• The first immediate objective was to improve the foreign exchange reserves to ensure India could meet its international payment obligations and avoid a sovereign default.
• The second objective was to control the inflationary pressures by regulating the money supply and fiscal deficit, as the inflation rate had reached double digits (approximately 17%) by 1991.
• These measures were a prerequisite for receiving financial assistance from international agencies like the International Monetary Fund (IMF) and the World Bank.

 Additional Information

• Structural Reform Measures
• These were long-term policies aimed at improving the efficiency of the economy and increasing its international competitiveness.
• They included the famous LPG model: Liberalisation, Privatisation, and Globalisation.
• Disinvestment: This involves the government selling its equity in Public Sector Enterprises (PSEs) to private investors to reduce state control and improve corporate governance.
• Foreign Direct Investment (FDI): Policy changes were made to allow greater automatic approval for foreign capital to improve technological standards and capital availability.
• Trade Policy Reforms: These involved the removal of licensing for imports and the reduction of high tariff rates to integrate the Indian economy with the global market.

The correct answer is Amaravati Quantum Valley.

Key Points

• The Amaravati Quantum Valley was officially announced in April 2025 as a specialized economic and technological zone in Andhra Pradesh, designed to serve as India’s first major quantum computing hub.
• This project is part of a broader state initiative to transform the Amaravati capital region into a global center for deep-tech research, bridging the gap between academic theory and commercial quantum applications.
• The valley focuses on the development of quantum hardware, including superconducting qubits and photonic circuits, aiming to build intermediate-scale quantum computers with 50 to 100 physical qubits.
• It establishes a collaborative ecosystem involving Tier-1 research institutions, global technology giants, and specialized startups to drive innovation in Quantum Information Science and Technology (QIST).
• The announcement marks a significant milestone in India’s domestic capabilities, reducing reliance on foreign quantum infrastructure and aligning with the Make in India vision for frontier technologies.

 Additional Information

• National Quantum Mission (NQM):
• Approved by the Union Cabinet in 2023 with an outlay of over 6,000 crore, the mission aims to seed, nurture, and scale up scientific and industrial R&D in quantum technology.
• It targets the development of quantum communication networks over a distance of 2,000 km and the creation of highly sensitive quantum sensors for navigation and healthcare.
• Core Domains of Quantum Technology:
• Quantum Computing: Utilizing superposition and entanglement to solve complex problems in optimization and drug discovery that are unsolvable by classical supercomputers.
• Quantum Cryptography: Implementing Quantum Key Distribution (QKD) to provide unhackable communication channels for national security and banking sectors.
• Quantum Materials: Engineering novel materials with topological properties for the next generation of electronic devices.

The correct answer is 15 lakh saplings in the state.

Key Points

• Seva Parv 2025, also widely celebrated as Seva Pakhwada (Service Fortnight), was observed from September 17, 2025, marking the birthday of Prime Minister Narendra Modi, until October 2, 2025, the birth anniversary of Mahatma Gandhi.
• As part of the nationwide Sustainable Development Goal (SDG) linked drive, the Government of Uttar Pradesh established a specific target to plant 15 lakh saplings across the state during this 15-day window.
• This initiative was closely integrated with the Ek Ped Maa Ke Naam (A Tree in Mother’s Name) campaign, which aims to enhance Indias carbon sink and promote climate resilience in alignment with SDG 13 (Climate Action).
• The plantation drive targeted various locations, including Panchayat lands, educational institutions, and urban forest zones, to ensure a balanced increase in the green cover of the state.
• The Department of Forest and the Department of Rural Development were the primary agencies responsible for executing this massive plantation exercise to meet the 15 lakh milestone within the stipulated timeframe.

 Additional Information

• Seva Parv / Seva Pakhwada:
• It is an annual event focused on public service, social welfare, and environmental conservation activities.
• Key activities include blood donation camps, cleanliness drives under Swachh Bharat Abhiyan, and awareness programs on vocal for local.
• Environmental Targets of Uttar Pradesh:
• Uttar Pradesh has consistently set high benchmarks for afforestation, often targeting over 35 crore saplings during the monsoon season (Van Mahotsav).
• The 15 lakh target for the Seva Parv serves as a supplementary micro-campaign to sustain momentum for the state’s Green Mission.
• The state utilizes the Geographic Information System (GIS) and e-Nagarpalika portals to monitor the survival rate of the planted saplings.

The correct answer is Automation.

Key Points

• Automation refers to the ability of a computer to perform a series of operations or tasks without human intervention once the initial program or instructions are provided and executed.
• The Control Unit (CU) within the Central Processing Unit (CPU) facilitates this by managing the Fetch-Decode-Execute cycle, allowing the computer to move from one instruction to the next in the Instruction Set automatically.
• This characteristic is essential for complex computations and high-speed data processing, where a machine can run batch jobs, system updates, or background processes independently until a logical end-point is reached.
• In modern computing, automation enables Artificial Intelligence (AI) and Robotic Process Automation (RPA) to handle sophisticated workflows, significantly increasing operational efficiency and reducing the likelihood of human error.

 Additional Information

• Diligence:
• This represents the reliability and consistency of a computer system.
• Unlike humans, computers do not suffer from fatigue, boredom, or lack of concentration, allowing them to perform millions of calculations per second for extended periods.
• Accuracy:
• Computers deliver extremely high precision in their results, often calculating up to several decimal places without error.
• The degree of accuracy is governed by the GIGO (Garbage In, Garbage Out) principle, meaning the computer is only as accurate as the input data and software logic provided to it.
• Portability:
• This refers to the ability of hardware or software to be transferred from one location or platform to another with minimal modification.
• In the context of programming languages, it signifies the ability of code to run across various operating systems such as Linux, Windows, and macOS.

The correct answer is Ctrl + S.

Key Points

• The Ctrl + S shortcut is the universal command used in the Windows operating system and most productivity applications (such as Microsoft Word, Excel, and Notepad) to trigger the Save function.
• When a user types or edits a document, the data is stored in the Random Access Memory (RAM), which is volatile memory; this means any unsaved data will be permanently wiped if the computer loses power or the Operating System crashes.
• Pressing Ctrl + S initiates a command to write the data from the volatile RAM to a non-volatile storage device, such as a Hard Disk Drive (HDD) or Solid State Drive (SSD), ensuring data persistence.
• Regularly using this shortcut is considered a critical computing best practice to minimize the risk of losing significant progress due to hardware failures or software glitches.
• As per the provided choices, Option (3) correctly identifies Ctrl + S as the essential tool for maintaining document safety. Hence, Ctrl + S is the correct answer.

 Additional Information

• Ctrl + V:
• Function: This is the Paste shortcut.
• Usage: It takes the content currently stored in the system Clipboard and inserts it into the document at the location of the insertion point.
• Ctrl + C:
• Function: This is the Copy shortcut.
• Usage: It duplicates selected text or objects and stores them in the Clipboard while leaving the original content intact.
• Ctrl + X:
• Function: This is the Cut shortcut.
• Usage: It removes the selected text or object from its original location and moves it to the Clipboard for later pasting.
• F12 Key:
• Function: In many Office applications, this serves as the Save As shortcut.
• Usage: It allows the user to save an existing file with a new name, a different file extension (like PDF or TXT), or in a different directory.

The correct answer is Marathi.

Key Points

• On October 3, 2024, the Union Cabinet, chaired by Prime Minister Narendra Modi, officially approved the conferment of Classical Language status to Marathi along with four other languages.
• The recognition was part of a historic decision to elevate Marathi, Pali, Prakrit, Assamese, and Bengali to the status of Classical Languages, acknowledging their deep historical roots and literary significance.
• The Government of India follows specific criteria for this designation, including high antiquity of early texts or recorded history spanning 1500 to 2000 years and a body of ancient literature that is considered a valuable heritage by generations of speakers.
• The proposal for Marathi was long-standing, backed by extensive research demonstrating that its linguistic and literary traditions are original and not borrowed from another speech community.
• With this inclusion, Marathi joins an elite group of Indian languages that receive special support for research, preservation, and promotion from the Ministry of Education.

 Additional Information

• Evolution of Classical Languages in India:
• Tamil was the first language to be accorded the status in 2004.
• Sanskrit was recognized in 2005, followed by Telugu and Kannada in 2008.
• Malayalam was designated in 2013, and Odia received the status in 2014.
• As of October 2024, the total number of recognized Classical Languages in India has reached 11.
• Benefits of the Status:
• The Ministry of Education provides two major annual International Awards for scholars of eminence in these languages.
• A Centre of Excellence for Studies in Classical Languages is established to promote academic research and documentation.
• The University Grants Commission (UGC) is requested to create a certain number of Professional Chairs for Classical Languages in Central Universities.
• Incorrect Options Context:
• Kannada: Conferred classical status in 2008.
• Tamil: Conferred classical status in 2004.
• Odia: Conferred classical status in 2014.

The correct answer is Brussels.

Key Points

• On March 6, 2025, the leaders of the European Union (EU) convened an extraordinary summit in Brussels to deliberate on the critical security challenges posed by the situation in Ukraine and the broader European security framework.
• Brussels serves as the administrative heart and the permanent seat of the European Council, where the heads of state or government of the 27 EU member states meet to define the Union's political direction and security priorities.
• The summit specifically focused on the European Peace Facility (EPF), the scaling up of the European defense industry, and the provision of long-term security guarantees to support Ukraine against external aggression.
• Holding the summit in Brussels allowed for immediate coordination with NATO leadership, as both organizations are headquartered in the city, emphasizing transatlantic unity and a collective response to security threats.
• Meetings typically take place at the Europa building, which is equipped with high-security facilities designed for crisis management and sensitive diplomatic negotiations between EU leaders and the President of the European Council.

 Additional Information

• Vienna:
• While Vienna is a prominent international diplomatic hub hosting the OSCE (Organization for Security and Co-operation in Europe) and the IAEA, it is not the official venue for European Council summits.
• Paris:
• Paris and nearby Versailles have hosted informal EU summits in the past, particularly in early 2022, but standard extraordinary sessions concerning security policy are generally centralized in Brussels.
• Berlin:
• As the capital of the EU's largest economy, Berlin is central to European diplomacy and Weimar Triangle talks, but formal plenary sessions of the 27 member states are hosted at the EU's institutional headquarters.

The correct answer is Computers became smaller and faster.

Key Points

• The transition from Vacuum Tubes in the first generation to Transistors in the second generation initiated a significant reduction in physical footprint and heat generation.
• The development of Integrated Circuits (ICs) during the third generation allowed for thousands of components to be placed on a single silicon chip, drastically increasing processing speed and reliability.
• Advancements in Microprocessor technology, specifically Very Large Scale Integration (VLSI), enabled the compression of an entire Central Processing Unit (CPU) onto a single chip, leading to the miniaturization seen in modern laptops and smartphones.
• As the physical distance between electronic components decreased, the time required for electrical signals to travel was reduced, resulting in higher clock speeds and the ability to perform billions of instructions per second (BIPS).
• Successive generations have consistently improved energy efficiency and memory density, allowing computers to store more data and operate faster while consuming less power than their predecessors.

 Additional Information

• Computer Generations Breakdown:
• First Generation (1940-1956): Utilized Vacuum Tubes; these machines like ENIAC and UNIVAC were room-sized and frequently overheated.
• Second Generation (1956-1963): Replaced tubes with Transistors, making computers smaller, faster, cheaper, and more energy-efficient.
• Third Generation (1964-1971): Introduced Integrated Circuits (ICs), which increased speed and efficiency by mounting many transistors on Silicon Chips.
• Fourth Generation (1971-Present): Characterized by Microprocessors and VLSI technology; this era saw the birth of Personal Computers (PCs) like the Altair 8800 and Apple II.
• Fifth Generation (Present and Beyond): Focuses on Artificial Intelligence (AI), Ultra Large Scale Integration (ULSI), and Parallel Processing to achieve human-like computing capabilities.

The correct answer is Adichanallur, Korkai, Alangulam.

Key Points

• Adichanallur, located in the Thoothukudi district of Tamil Nadu, is an Iron Age burial site where carbon dating of paddy husks and urns has pushed the timeline of Tamil civilization back to at least 905 BCE, aligning with the early roots of the Sangam era.
• Korkai served as the ancient capital and primary port of the Early Pandyas; it is extensively mentioned in Sangam literature like Purananuru and Akananuru for its flourishing pearl fishery, which has been validated by archaeological finds of pearl oysters and brick structures.
• Alangulam, situated near the Vaigai river mouth in Ramanathapuram, was an important coastal trading center where excavations revealed Roman pottery (Arretine and Rouletted ware), confirming the international maritime trade descriptions found in Sangam texts.
• Together with Keeladi, these sites provide material proof of high literacy (Tamil-Brahmi script), urbanization, and an advanced agrarian society that was previously known only through literary traditions.

 Additional Information

• Indus Valley Civilization Sites
• Lothal, Dholavira, and Harappa belong to the Bronze Age (c. 2500–1900 BCE) and are located in the northwestern parts of the Indian subcontinent, far preceding the Sangam period.
• Medieval and Rock-cut Sites
• Ajanta and Ellora are world-famous for their monastic complexes and mural paintings in Maharashtra, largely dating from the 2^nd century BCE to the 10^th century CE.
• Hampi was the 14^th-century capital of the Vijayanagara Empire in Karnataka, representing a much later historical epoch than the classical Sangam age.
• North-Western Sites
• Mohenjo-Daro and Kalibangan are core Harappan sites characterized by planned drainage and citadels, unrelated to the specific regional Tamil Sangam context.

The correct answer is Kerala.

Key Points

• According to the 15^th official census conducted by the Registrar General and Census Commissioner of India in 2011, Kerala secured the top position with an overall literacy rate of 94.00%.
• The state demonstrated significant progress in gender-based literacy, recording a male literacy rate of 96.11% and a female literacy rate of 92.07%, which was the highest in the country.
• The success of Kerala is largely attributed to historical social reform movements, the proactive role of the Kerala State Literacy Mission, and consistent government focus on universal primary education.
• In comparison, the national average literacy rate in India during the 2011 Census was documented at 74.04%, highlighting Kerala's substantial lead over other Indian states.
• Literacy in the census is defined as the ability of a person aged 7 years and above to both read and write with understanding in any language.

 Additional Information

• Literacy Data of Other Mentioned States (2011):
• Maharashtra: Recorded a literacy rate of 82.34%, maintaining its position as one of the leading industrialized states with robust educational infrastructure.
• Himachal Pradesh: Registered a literacy rate of 82.80%, reflecting successful implementation of educational policies in a difficult Himalayan terrain.
• Tamil Nadu: Stood at 80.09%, supported by various welfare schemes focused on increasing school enrollment and reducing dropout rates.
• Other Notable Rankings:
• Lakshadweep: Held the highest literacy rate among Union Territories at 91.85%.
• Mizoram: Ranked second among states with a literacy rate of 91.33%, following Kerala closely.
• Bihar: Recorded the lowest literacy rate in India at 61.80% during the 2011 period.

The correct answer is 10³ kg.

Key Points

• A tonne (also known as a metric ton) is a non-SI unit of mass that is officially accepted for use with the International System of Units (SI).
• The standard SI unit of mass is the kilogram (kg).
• One tonne is defined as exactly 1,000 kilograms, which is represented in scientific notation as 10³ kg.

 Additional Information

• SI Base Unit of Mass:
• The kilogram is one of the seven base units of the SI system.
• In 2019, the definition of the kilogram was redefined to be based on the fundamental physical constant known as the Planck constant (h), which has a fixed numerical value of 6.62607015 × 10⁻³⁴ kg m² s⁻¹.
• Other Metric Mass Conversions:
• Gram (g): One gram is 10⁻³ kg. Consequently, one tonne is equivalent to 1,000,000 grams (10⁶ g).
• Quintal: A metric unit of mass equal to 100 kg (or 10² kg). Therefore, one tonne contains exactly ten quintals.
• Megagram (Mg): This is the official SI multi-unit for one million grams, which is mathematically identical to one tonne (1 Mg = 10³ kg).