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The correct answer is Surendranath Banerjee

Key PointsIndian National Conference

• Indian Association and Indian National Conference are considered the precursors of the Indian National Congress.
• The Indian National Conference was the first recognized nationalist organization founded in British India by Surendranath Banerjee and Ananda Mohan Bose in 1876.
• The primary objective of the Association was to encourage people by legitimate means i.e. the political, intellectual, and material advancement of the people.
• The first session of the National Conference, held in Calcutta on December 28 - 30, 1883, was attended by more than a hundred delegates from different parts of India.
• Immediately after the conclusion of the second session of the National Conference in Calcutta, the first session of the Indian National Congress was held in Bombay (December 28, 1885).

Additional Information The Indian Association of Calcutta

• It was founded by Surendranath Banerjee and Anand Mohan Bose in 1876.
• This association was aimed to unify Indian people on a common political program.

British Indian Association

• It was founded on October 29, 1851, at Calcutta with Raja Radhakanta Dev and Debendranath Tagore as its President and Secretary respectively.
• The object of the Association was 'to secure improvements in the local administration of the country and in the system of government laid down by Parliament'.

Given:

A box contains 52 coins of 1 rupee and 50 paise. The ratio of their value is 3 ∶ 5.

Concept:

Let the number of 1 rupee coins be x and the number of 50 paise coins be y.

According to the problem,

x + y = 52 (Total number of coins)

Value of 1 rupee coins = x × 1 = x rupees

Value of 50 paise coins = y × 0.5 = 0.5y rupees

The ratio of their value is given as 3 ∶ 5.

Formula Used:

Value ratio: (x / (0.5y)) = 3 / 5

Calculation:

We have,

⇒ x + y = 52  ...(i)

⇒ x / (0.5y) = 3 / 5  ...(ii)

From equation (ii):

⇒ x / (0.5y) = 3 / 5

⇒ 2x / y = 3 / 5

⇒ 10x = 3y

⇒ y = (10/3)x  ...(iii)

Substitute equation (iii) into equation (i):

⇒ x + (10/3)x = 52

⇒ (3x + 10x) / 3 = 52

⇒ 13x / 3 = 52

⇒ 13x = 156

⇒ x = 156 / 13

⇒ x = 12

Substitute x = 12 into equation (iii):

⇒ y = (10 / 3) × 12

⇒ y = 40

∴ The number of 1 rupee coins is 12 and the number of 50 paise coins is 40.

The correct answer is Nana Sahib.

Key Points

• Nana Saheb led the revolt of 1857 from Kanpur.
• The rebellion of 1857 was spread across the areas of Meerut, Agra, Mathura, and Lucknow near Kanpur.
• Nana Saheb, the adopted heir of Baji Rao II joined the struggle as he was denied the pension and honours on the ground that he was not the natural-born heir.
• Tantia Tope assisted Nana Saheb in Kanpur as the Commander in Chief.

Additional InformationThe Sepoy Mutiny

• The First War of Independence, known as Sepoy Mutiny, was the first rebellion against the British troops in India in 1857.
• The revolt began in Meerut and was led by Bahadur Shah II from Delhi, Begum Hazrat Mahal from Lucknow, Nana Sahib, and Tantya Tope from Kanpur, and Rani Laxmibai from Jhansi.

The reasons behind the revolt were:

• Destruction of Indian Economy and Land Reforms
• Policies of Subsidiary Alliance and Doctrine of Lapse
• Introduction of Enfield Rifles with fat coatings

The correct answer is yellow coloured.

Key Points

• Hydrogen is the most abundant gas in the universe.
• The chemical element hydrogen has the symbol H and the atomic number 1.
• It is the very first element in the periodic table.
• The hydrogen nucleus contains one proton but no neutron.
• It is insoluble in water and lighter than the air.
• In nature, hydrogen gas is colourless, odourless, non-toxic, and tasteless.
• It is a combustible gas, but it does not support combustion Thus, the colour of the hydrogen gas is colourless.

The logic followed here is:

Logic: It is the logical sequence of events, typically in the context of a person's career progression.

The correct meaningful order of the words is shown below:

E) Education

D) Application

C) Examination

A) Appointment letter

B) Income

Hence, the correct answer is "EDCAB".

Given:

A can do a piece of work in 20 days

A leaves after 5 days of work

The rest of work B can do in 22\(\frac{1}{2}\)  = 45/2 days

Calculation:

5A + 45/2B = 20A

⇒ 45/2 B = 15A

⇒ 45 B = 30 A

⇒ B/A = 30/45 = 2/3

Total work = 20A = 20 × 3 = 60

Time take by (A + B) together = 60/(3+ 2) = 60/5 = 12 days.

∴ The correct answer is 12 days.

Given that

A is shorter than B but taller than E. C is taller than B → C>B > A >E

D is shorter than B but taller than A → B >D >A

The final arrangement → C>B >D >A >E

The shortest is E

Hence the correct answer is option 2: E

The correct answer is ​Sir William Jones

Key Points

• ​Sir William Jones (an Anglo philologist) created the Asiatic Society to promote oriental research and studies in India.
• The Asiatic Society publishes books in different series, viz.,
• Bibliotheca Indica,
• Monograph,
• Seminar & Public Lecture,
• Catalogues
• Bibliographical Works besides some books under Miscellaneous publications.
• Moreover, it publishes periodicals, i.e. a quarterly Journal of the Asiatic Society and Monthly Bulletin of the Asiatic Society.
• James Prinsep bought the first issue of the journal, The Journal of the Asiatic Society of Bengal, which appeared in March 1832.

Additional InformationDavid Hare:

• In 1817, David Hare, who had come out to India in the 1800 as a watchmaker but spent his entire life in the propagation of modern education in the country, founded the famous Hindu College.
• He spent his entire life in the promotion of modern education in the country, founded the famous Hindu College.
• Rammohun Roy gave most enthusiastic assistance to Hare in this and his other educational projects.
• In addition, he maintained at his own cost an English school in Calcutta from 1817.
• In this school, among other subjects, mechanics and the philosophy of Voltaire were taught.

The given series is: 1 3 4 3 5 2 2 3 3 4 1 5 6 7 4 6 2 3 2 5 7 2 5 6 7 9 

Here, the numbers which are equal to the sum of the immediately preceding and immediately following numbers:

→ 1 3 4 3 (5) 2 2 3 3 (4) 1 5 6 7 4 (6) 2 3 2 5 (7) 2 5 6 7 9 

Here, we can see that there are four such numbers.

Hence, the correct answer is "4".

The correct answer is Lysosome.

Key Points

• Lysosomes are single membrane-bound organelles present in animal cells.
• Lysosomes have acidic internal pH about 5 and are filled with hydrolytic enzymes.
• They contain about 40 different types of hydrolytic enzymes (including lipases, proteases, nucleases, phosphatases etc.) which are responsible for digestion of intracellular macromolecules.
• Lysosomes are of two types: **Primary lysosomes (**do not contain material for intracellular digestion) and secondary lysosomes (contain materials that are undergoing digestion or that already have been digested).
• The process by which substances are taken into the cell from external environment and broken down by lysosome is called heterophagy.
• In contrast, the degradation of cytoplasmic components within lysosomes is called autophagy.

Additional Information

 Ribosome: The ribosomes are large ribonucleoproteins consists of RNAs and proteins, ubiquitous in all cells, that translates genetic information stored in the mRNA into the polypeptides.

Different types of ribosomes and their rRNAs.

The ribosomes are app. globular in structure.

 Centrosome: In animal cells, a pair of centrioles present in MTOC (microtubule-organizing center.) MTOC with a pair of centrioles is known as centrosome.

Mitochondria: Mitochondria (term coined by C. Benda) are energy converting organelles, which are present in virtually all eukaryotic cells. 

• They are sites of aerobic respiration. They produce cellular energy in the form of ATP. So, they are known as powerhouse of the cell.