Official Paper

Bihar Police Constable Memory Based Paper (Held On: 22 Oct 2017) (Previous Year Paper)

100 questions · 120 minutes · with answers · free

Attempt as Timed Mock Test

Written Test (100 questions)

1

What was the objective of the Consumer Protection Act 1986?

  1. ((a))

    Providing mechanism to action on the complaints

  2. ((b))

    To aware consumer to their rights

  3. ((c))

    To protect consumers against fraud and unfairness

  4. ((d))

    All of the above

Show Answer
Answer: ((a))

Providing mechanism to action on the complaints

2

'यौवन' शब्द किस संज्ञा का उदाहरण होगा ?

  1. ((a))

    व्यक्तिवाचक संज्ञा

  2. ((b))

    भाववाचक संज्ञा

  3. ((c))

    द्रव्यवाचक संज्ञा

  4. ((d))

    समूहवाचक संज्ञा

Show Answer
Answer: ((a))

व्यक्तिवाचक संज्ञा

3

Hirakund Project is situated on which river?

  1. ((a))

    Kaveri

  2. ((b))

    Godawari

  3. ((c))

    Mahanadi

  4. ((d))

    Chambal

Show Answer
Answer: ((a))

Kaveri

4

Which of the following is not an example of a bio-mass energy source ?

  1. ((a))

    wood

  2. ((b))

    gobar-gas

  3. ((c))

    nuclear energy

  4. ((d))

    coal

Show Answer
Answer: ((a))

wood

5

Tropic of Cancer does NOT pass through which of the following Indian state?

  1. ((a))

    Mizoram

  2. ((b))

    Gujarat

  3. ((c))

    Tripura

  4. ((d))

    Maharashtra

Show Answer
Answer: ((a))

Mizoram

6

Kilowatt-hour (kWh) represents the unit of which of the following?

  1. ((a))

    Electrical Power

  2. ((b))

    Force

  3. ((c))

    Momentum

  4. ((d))

    Energy

Show Answer
Answer: ((a))

Electrical Power

7

Which of the following Railway Stations was formerly known as Victoria Terminus?

  1. ((a))

    Churchgate Railway Station

  2. ((b))

    Mumbai Centra

  3. ((c))

    Lokmanya Tilak Terminus

  4. ((d))

    Chhatrapathi Shivaji Terminus

Show Answer
Answer: ((a))

Churchgate Railway Station

8

The transformation of the larva into an adult through drastic changes is known as which of the following?

  1. ((a))

    Viviparous

  2. ((b))

    Oviparous

  3. ((c))

    Embryo

  4. ((d))

    Metamorphosis

Show Answer
Answer: ((a))

Viviparous

9

What does the term 'Dumping' refer to?

  1. ((a))

    The sale of a sub-standard commodity

  2. ((b))

    Sale in a foreign market of a commodity at a price below marginal cost

  3. ((c))

    Sale in a foreign market of a commodity just at a marginal cost with too much profit

  4. ((d))

    Smuggling of goods without paying any customs duty

Show Answer
Answer: ((a))

The sale of a sub-standard commodity

10

Who was the founder of Buddhism?

  1. ((a))

    Mahavir

  2. ((b))

    Siddhartha

  3. ((c))

    Chanakya

  4. ((d))

    Ashoka the great

Show Answer
Answer: ((a))

Mahavir

11

Use the correct antonym for underlined words:

She looks pretty no matter what she wears.

  1. ((a))

    Attractive

  2. ((b))

    Lovely

  3. ((c))

    Charming

  4. ((d))

    Ugly

Show Answer
Answer: ((a))

Attractive

12

The function of Central Vigilance Commission of India is -

  1. ((a))

    To supervise investigating agencies in the country.

  2. ((b))

    To expedite decisions on pending criminal cases in the Court of law.

  3. ((c))

    To scrutinize utilization of expenditure on development schemes of the government.

  4. ((d))

    To investigate cases against public servants.

Show Answer
Answer: ((a))

To supervise investigating agencies in the country.

13

The fuel used in nuclear power plant is:

  1. ((a))

    Gasoline

  2. ((b))

    Gold

  3. ((c))

    Uranium

  4. ((d))

    Radium

Show Answer
Answer: ((a))

Gasoline

14

Which of the following options is the correct word for "Map showing the distribution of forest"?

  1. ((a))

    Forest ecology

  2. ((b))

    Topography

  3. ((c))

    Thematic map

  4. ((d))

    Pedology

Show Answer
Answer: ((a))

Forest ecology

15

During Gupta Age, Aryabhatta was a great ______________.

  1. ((a))

    politician

  2. ((b))

    sculptor

  3. ((c))

    mathematician

  4. ((d))

    None of the above

Show Answer
Answer: ((a))

politician

16

(2/5) + (6/7) + (3/10) + x = 9, find the value of x?

  1. ((a))

    521/50

  2. ((b))

    521/70

  3. ((c))

    522/39

  4. ((d))

    621/70

Show Answer
Answer: ((a))

521/50

17

अधिकरण कारक का विभक्ति चिह्न है-

  1. ((a))

    से, तक

  2. ((b))

    अरे

  3. ((c))

    का, के

  4. ((d))

    में, पर

Show Answer
Answer: ((a))

से, तक

18

An Element has Atomic number 16 and Mass number 32, then number of neutrons present in it?

  1. ((a))

    8

  2. ((b))

    10

  3. ((c))

    14

  4. ((d))

    16

Show Answer
Answer: ((a))

8

19

Direction: Fill in the blank with a suitable preposition in the given sentence:

The newspaper is ______ the coffee table.

  1. ((a))

    at

  2. ((b))

    in

  3. ((c))

    for

  4. ((d))

    on

Show Answer
Answer: ((a))

at

20

What will come in place of question mark ‘?’ in the following question?

2.75% of 450 – 1.75% of 650 = ?

  1. ((a))

    16

  2. ((b))

    5

  3. ((c))

    2

  4. ((d))

    1

Show Answer
Answer: ((a))

16

21

'लिखवाना' शब्द किस क्रिया का है? 

  1. ((a))

    सामान्य क्रिया 

  2. ((b))

    संयुक्त क्रिया 

  3. ((c))

    नामधातु क्रिया 

  4. ((d))

    प्रेरणार्थक क्रिया 

Show Answer
Answer: ((a))

सामान्य क्रिया 

22

Which of the following state is the largest producer of Rubber in India?

  1. ((a))

    Kerala

  2. ((b))

    Tamil Nadu

  3. ((c))

    Karnataka

  4. ((d))

    Tripura

Show Answer
Answer: ((a))

Kerala

23

​Name the physicist who is credited with the discovery of the Neutron. This 1932 discovery led to his winning the Nobel Prize.

  1. ((a))

    J. S. Fleming

  2. ((b))

    Enrico Fermi

  3. ((c))

    Max Plank

  4. ((d))

    James Chadwick

Show Answer
Answer: ((a))

J. S. Fleming

24

If a2 + b2 + c2 = ab + bc + ca then the value of a3+ b3 + c3 – 3abc is

  1. ((a))

    0

  2. ((b))

    1

  3. ((c))

    -1

  4. ((d))

    2

Show Answer
Answer: ((a))

0

25

In the equation of motion v = u + at, u represents _______.

  1. ((a))

    Initial velocity

  2. ((b))

    Final velocity

  3. ((c))

    Kinetic energy

  4. ((d))

    Potential energy

Show Answer
Answer: ((a))

Initial velocity

26

Who upheld the view that religion can never be separated from politics?

  1. ((a))

    Dayanand Saraswati

  2. ((b))

    Raja Ram Mohan Roy

  3. ((c))

    Gopal Krishna Gokhlae

  4. ((d))

    Mahatma Gandhi

Show Answer
Answer: ((a))

Dayanand Saraswati

27

Which of the following is/are the features of democracy?

  1. ((a))

    Rulers are elected by the people who take all the major decisions

  2. ((b))

    A democracy is based on a free and fair election where those currently in power have a fair chance of losing. 

  3. ((c))

    The exercise of this choice leads to a government limited by basic rules of the constitution and citizens’ rights.

  4. ((d))

    All of the Above

Show Answer
Answer: ((a))

Rulers are elected by the people who take all the major decisions

28

Which is the main mode of transport in India?

  1. ((a))

    Aviation

  2. ((b))

    Railways

  3. ((c))

    Roads

  4. ((d))

    Ports

Show Answer
Answer: ((a))

Aviation

29

दिए गए विकल्पों में से कौन सा शब्द ‘समुद्र’ का पर्यायवाची है?

  1. ((a))

    पयोधि

  2. ((b))

    अंबर

  3. ((c))

    अभ्र

  4. ((d))

    वारि

Show Answer
Answer: ((a))

पयोधि

30

Why oil does not mix with water?

  1. ((a))

    Molecules of oil are non-polar

  2. ((b))

    Molecules of oil are bigger than that of water

  3. ((c))

    Both 1 and 2 are correct

  4. ((d))

    None of the above

Show Answer
Answer: ((a))

Molecules of oil are non-polar

31

Which country is not a permanent member of UNSC?

  1. ((a))

    India

  2. ((b))

    USA

  3. ((c))

    Russia

  4. ((d))

    France

Show Answer
Answer: ((a))

India

32

Which was the first State in India to pass the GST bill?

  1. ((a))

    Tamil Nadu

  2. ((b))

    Gujarat

  3. ((c))

    Madhya Pradesh

  4. ((d))

    Assam

Show Answer
Answer: ((a))

Tamil Nadu

33

तत्सम शब्द किसे कहते हैं:

  1. ((a))

    किसी भाषा के मूल शब्द को 

  2. ((b))

    शब्द के विकृत रूप को 

  3. ((c))

    जिनकी कोई व्युत्पत्ति नहीं होती 

  4. ((d))

    उपर्युक्त सभी 

Show Answer
Answer: ((a))

किसी भाषा के मूल शब्द को 

34

_________ is known as father of Modern Hindi Literature?

  1. ((a))

    Bharatendu Harishchandra

  2. ((b))

    Munshi Premchand

  3. ((c))

    Maithili Sharan Gupt

  4. ((d))

    Suryakant Tripathi Nirala

Show Answer
Answer: ((a))

Bharatendu Harishchandra

35

If the length, breadth and height of a cuboid are 7.5 m, 22 m and 13 m, respectively, then find the volume of the cuboid.

  1. ((a))

    2145 m3

  2. ((b))

    1245 m3

  3. ((c))

    4215 m3

  4. ((d))

    2154 m3

Show Answer
Answer: ((a))

2145 m3

36

Who has written ‘Das Kapital’?

  1. ((a))

    Freidrich Engels

  2. ((b))

    G.W.F Hegel

  3. ((c))

    Karl Marx

  4. ((d))

    Max Weber

Show Answer
Answer: ((a))

Freidrich Engels

37

Amarbel (Cuscuta) is a

  1. ((a))

    Autotroph

  2. ((b))

    Parasite

  3. ((c))

    Saprophyte

  4. ((d))

    Decomposer

Show Answer
Answer: ((a))

Autotroph

38

Economically, one of the results of the British rule in India in the 19th century was the

  1. ((a))

    increase in the export of Indian handicrafts

  2. ((b))

    growth in the number of Indian owned factories

  3. ((c))

    commercialization of Indian agriculture

  4. ((d))

    rapid increase in the urban population

Show Answer
Answer: ((a))

increase in the export of Indian handicrafts

39

Cholesterol is a?

  1. ((a))

    Type of chlorophyll

  2. ((b))

    Fatty alcohol found in animal fats

  3. ((c))

    Derivative of chloroform

  4. ((d))

    Chromium salt

Show Answer
Answer: ((a))

Type of chlorophyll

40

When did the Right to Education come into force?

  1. ((a))

    April, 2010

  2. ((b))

    July, 2010

  3. ((c))

    December, 2010

  4. ((d))

    January, 2011

Show Answer
Answer: ((a))

April, 2010

41

The part of the land which is almost surrounded by water from all three sides but connected to the mainland on one side is called ______.

  1. ((a))

    Strait

  2. ((b))

    Island

  3. ((c))

    Isthmus

  4. ((d))

    Peninsula

Show Answer
Answer: ((a))

Strait

42

Kisan Credit Card (KCC) Scheme was started since

  1. ((a))

    July 1998

  2. ((b))

    August 1998

  3. ((c))

    September 1998

  4. ((d))

    October 1998

Show Answer
Answer: ((a))

July 1998

43

The measure of amount of water vapour in the atmosphere is called

  1. ((a))

    Humidity

  2. ((b))

    Temperature

  3. ((c))

    Transpiration

  4. ((d))

    Evaporation

Show Answer
Answer: ((a))

Humidity

44

Select the verb form of an adjective "excellent" from the given options:

  1. ((a))

    excel

  2. ((b))

    excellently

  3. ((c))

    excellence

  4. ((d))

    excellenting

Show Answer
Answer: ((a))

excel

45

Choose the most appropriate adjective form of the following word.

ADVENTURE

  1. ((a))

    Adventuree

  2. ((b))

    Adventured

  3. ((c))

    Adventures

  4. ((d))

    Adventurous

Show Answer
Answer: ((a))

Adventuree

46

निम्न शब्दों मे से ‘ओजस्वी’ का उचित विपरीत शब्द क्या है?

  1. ((a))

    निस्तेज 

  2. ((b))

    ओछा 

  3. ((c))

    अपूर्ण 

  4. ((d))

    प्रभावित 

Show Answer
Answer: ((a))

निस्तेज 

47

Fill in the blank with the suitable gerund:

I like ________ for a walk.

  1. ((a))

    Going

  2. ((b))

    To go

  3. ((c))

    In going

  4. ((d))

    On going

Show Answer
Answer: ((a))

Going

48

I would like _________ you for coming here tonight.

Fill in the blank with a suitable infinitive.

  1. ((a))

    thanking

  2. ((b))

    to thanked

  3. ((c))

    to thank

  4. ((d))

    to be thanking

Show Answer
Answer: ((a))

thanking

49

Which of the following is a noble gas/element?

  1. ((a))

    Ca

  2. ((b))

    F

  3. ((c))

    N

  4. ((d))

    Ne

Show Answer
Answer: ((a))

Ca

50

त, थ, द, ध, न का उच्चारण __________ से होता है।

  1. ((a))

    तालु

  2. ((b))

    नासिका

  3. ((c))

    दंत

  4. ((d))

    कंठ

Show Answer
Answer: ((a))

तालु

51

The oldest mountain range of India is-

  1. ((a))

    Himalaya

  2. ((b))

    Aravali

  3. ((c))

    Vindyachal

  4. ((d))

    Shivalik

Show Answer
Answer: ((a))

Himalaya

52

On which date the Kisan Call Center launched in India?

  1. ((a))

    January 26, 2002

  2. ((b))

    January 21, 2004

  3. ((c))

    April 21, 2005

  4. ((d))

    November 14, 1996

Show Answer
Answer: ((a))

January 26, 2002

53

Which of the following is not a part of Shiwalik range of Bihar?

  1. ((a))

    Jethian hill

  2. ((b))

    Ramanagar doon

  3. ((c))

    Someshwar range

  4. ((d))

    Harha valley

Show Answer
Answer: ((a))

Jethian hill

54

Which one is an ideal fuel?

  1. ((a))

    Kerosene

  2. ((b))

    Coal

  3. ((c))

    Natural gas

  4. ((d))

    Wood

Show Answer
Answer: ((a))

Kerosene

55

हिंदी वर्णमाला में कुल कितने व्यंजन हैं?

  1. ((a))

    48

  2. ((b))

    25

  3. ((c))

    40

  4. ((d))

    41

Show Answer
Answer: ((a))

48

56

Who called the multipurpose river valley projects ‘the temples of modern India’?

  1. ((a))

    Dr Rajendra Prasad

  2. ((b))

    Jawaharlal Nehru

  3. ((c))

    Indira Gandhi

  4. ((d))

    Mahatma Gandhi

Show Answer
Answer: ((a))

Dr Rajendra Prasad

57

In photosynthesis which gas is released by the green plants?

  1. ((a))

    Oxygen

  2. ((b))

    Nitrogen

  3. ((c))

    Carbon-dioxide

  4. ((d))

    Water-vapour

Show Answer
Answer: ((a))

Oxygen

58

The study of grass is known as ________.

  1. ((a))

    Agronomy

  2. ((b))

    Pharmacognosy

  3. ((c))

    Dendrology

  4. ((d))

    Agrostology

Show Answer
Answer: ((a))

Agronomy

59

Water is often treated with chlorine to

  1. ((a))

    To Increase oxygen content

  2. ((b))

    To Kill germs

  3. ((c))

     To Remove sedimentation 

  4. ((d))

    To Remove insoluble impurities

Show Answer
Answer: ((a))

To Increase oxygen content

60

Fermentation is the process of ______.

  1. ((a))

    Conversion of starch into sugar

  2. ((b))

    Conversion of sugar into alcohol

  3. ((c))

    Conversion of protein into sugar

  4. ((d))

    adding yeast to make wine

Show Answer
Answer: ((a))

Conversion of starch into sugar

61

Air moves from the high-pressure area over the southern Indian Ocean in a south-easterly direction and turn right towards low pressure areas over the Indian subcontinent. These we know as the ______ winds.

  1. ((a))

    Easterly

  2. ((b))

    Westerly

  3. ((c))

    South-West Monsoon

  4. ((d))

    Trade

Show Answer
Answer: ((a))

Easterly

62

The human skull is a collection of ________ bones.

  1. ((a))

    18

  2. ((b))

    22

  3. ((c))

    30

  4. ((d))

    25

Show Answer
Answer: ((a))

18

63

Convert 19 Kilogram 50 grams into grams.

  1. ((a))

    19500 grans

  2. ((b))

    19050 grams

  3. ((c))

    1950 grams

  4. ((d))

    0.1950 grams

Show Answer
Answer: ((a))

19500 grans

64

Identify the SI unit of electrical resistance.

  1. ((a))

    Ohm

  2. ((b))

    Watt

  3. ((c))

    Coulomb

  4. ((d))

    Ampere

Show Answer
Answer: ((a))

Ohm

65

‘भरपेट’ शब्द में किस समास का प्रयोग हुआ है?

  1. ((a))

    कर्मधारय 

  2. ((b))

    अव्ययीभाव

  3. ((c))

    द्वन्द्व

  4. ((d))

    तत्पुरुष

Show Answer
Answer: ((a))

कर्मधारय 

66

Which country has come forward to help clean India's River Ganga?

  1. ((a))

    Iran

  2. ((b))

    Israel

  3. ((c))

    Ireland

  4. ((d))

    Italy

Show Answer
Answer: ((a))

Iran

67

कवि का स्त्रीलिंग रूप होगा

  1. ((a))

    कवित्री

  2. ((b))

    लेखिका

  3. ((c))

    कवीत्री

  4. ((d))

    कवयित्री

Show Answer
Answer: ((a))

कवित्री

68

Polio and chicken pox are caused by which of the following microorganism?

  1. ((a))

    Virus

  2. ((b))

    Fungi

  3. ((c))

    Bacteria

  4. ((d))

    Protozoa

Show Answer
Answer: ((a))

Virus

69

Which Indian state is the largest by area?

  1. ((a))

    Maharashtra

  2. ((b))

    Uttar Pradesh

  3. ((c))

    Rajasthan

  4. ((d))

    Madhya Pradesh

Show Answer
Answer: ((a))

Maharashtra

70

Conduction in plants occurs through

  1. ((a))

    xylem

  2. ((b))

    phloem

  3. ((c))

    Both (1) and (2)

  4. ((d))

    None of the above

Show Answer
Answer: ((a))

xylem

71

Direction: Adverb form of 'Active' is ________.

  1. ((a))

    Actively

  2. ((b))

    Activity

  3. ((c))

    Act

  4. ((d))

    Action

Show Answer
Answer: ((a))

Actively

72

How many single bonds are present in methane?

  1. ((a))

    Six

  2. ((b))

    Four

  3. ((c))

    Seven

  4. ((d))

    Five

Show Answer
Answer: ((a))

Six

73

Directions: Find the plural of the given word-

'Thief'

  1. ((a))

    thievs

  2. ((b))

    thivee

  3. ((c))

    thiefs

  4. ((d))

    thieves

Show Answer
Answer: ((a))

thievs

74

A man sold his furniture at a 25% gain. Had he sold at 15% loss. He would have received ₹ 800 less. Find cost price of the furniture.

  1. ((a))

    Rs. 1,500

  2. ((b))

    Rs. 3,000

  3. ((c))

    Rs. 2,000

  4. ((d))

    Rs 2,500

Show Answer
Answer: ((a))

Rs. 1,500

75

A man sold an article at 20% profit. If he sold it for Rs. 1200. Find the cost price of the article?

  1. ((a))

    Rs. 900

  2. ((b))

    Rs. 1100

  3. ((c))

    Rs. 1000

  4. ((d))

    Rs. 800

Show Answer
Answer: ((a))

Rs. 900

76

Which of these islands are located in the Arabian Sea?

  1. ((a))

    Andaman Islands

  2. ((b))

    Nicobar Islands

  3. ((c))

    Lakshadweep Islands

  4. ((d))

    All of the above

Show Answer
Answer: ((a))

Andaman Islands

77

The law of inertia follows:

  1. ((a))

    Newton's first law of motion

  2. ((b))

    Newton's second law of motion

  3. ((c))

    Newton's third law of motion

  4. ((d))

    All of the above

Show Answer
Answer: ((a))

Newton's first law of motion

78

Geeta bought a bag for Rs. 1,000 and spent Rs. 300 on fixing the defects in the bag. Later, she sold it for Rs. 1,508. What is the percentage of profit that Geeta earned through the sale?

  1. ((a))

    12%

  2. ((b))

    14%

  3. ((c))

    18%

  4. ((d))

    16%

Show Answer
Answer: ((a))

12%

79

Citric acid is commonly found in ______.

  1. ((a))

    onions

  2. ((b))

    apples

  3. ((c))

    oranges

  4. ((d))

    bananas

Show Answer
Answer: ((a))

onions

80

In a circle the Greek letter π is used to represent the ratio of ________.

  1. ((a))

    Circumference/Diameter

  2. ((b))

    Radius/Circumference

  3. ((c))

    Diameter /Circumference

  4. ((d))

    Circumference/Radius 

Show Answer
Answer: ((a))

Circumference/Diameter

81

Which river finally falls into Arabian sea?

  1. ((a))

    Krishna

  2. ((b))

    Cauvery

  3. ((c))

    Tapti

  4. ((d))

    Godavari

Show Answer
Answer: ((a))

Krishna

82

At ______ temperature, both the Fahrenheit and Centigrade scales have the same value. 

  1. ((a))

    -60° 

  2. ((b))

    -30° 

  3. ((c))

    -40° 

  4. ((d))

    -50° 

Show Answer
Answer: ((a))

-60° 

83

If the length of a second's pendulum is doubled, what will be the time period (take the initial time period as 1 second)?

  1. ((a))

    3.82 sec

  2. ((b))

    2.82 sec

  3. ((c))

    1.41 sec

  4. ((d))

    2.5 sec

Show Answer
Answer: ((a))

3.82 sec

84

Who discovered X-rays?

  1. ((a))

    Albert Einstein

  2. ((b))

    W.K. Roentgen

  3. ((c))

    Ernest Rutherford

  4. ((d))

    J. J. Thomson

Show Answer
Answer: ((a))

Albert Einstein

85

Which one of the following is the lowest possible temperature?

  1. ((a))

    0° Celsius

  2. ((b))

    -073° Celsius

  3. ((c))

    -173° Celsius

  4. ((d))

    -273° Celsius

Show Answer
Answer: ((a))

0° Celsius

86

Heat energy produced by sun reaches to earth due to __________.

  1. ((a))

    conduction

  2. ((b))

    convection

  3. ((c))

    radiation

  4. ((d))

    Air

Show Answer
Answer: ((a))

conduction

87

The cooking Gas (LPG) mainly consists of

  1. ((a))

    Ethyne

  2. ((b))

    Butane

  3. ((c))

    Propane

  4. ((d))

    Ethene

Show Answer
Answer: ((a))

Ethyne

88

Which acid is present in sour milk?

  1. ((a))

    Citric Acid

  2. ((b))

    Acetic Acid

  3. ((c))

    Glycolic Acid

  4. ((d))

    Lactic Acid

Show Answer
Answer: ((a))

Citric Acid

89

The percentage of pure gold in 18-carat gold is ______.

  1. ((a))

    60%

  2. ((b))

    75%

  3. ((c))

    80%

  4. ((d))

    100%

Show Answer
Answer: ((a))

60%

90

Heavy water is _____

  1. ((a))

    water, in which soap does not lather

  2. ((b))

    compound of heavy oxygen and heavy hydrogen

  3. ((c))

    compound of deuterium and oxygen

  4. ((d))

    water at 4°C

Show Answer
Answer: ((a))

water, in which soap does not lather

91

Which of the following is an example of the compound?

  1. ((a))

    Manganese

  2. ((b))

    Air

  3. ((c))

    Ozone

  4. ((d))

    Ammonia gas

Show Answer
Answer: ((a))

Manganese

92

What is laughing gas?

  1. ((a))

    Nitrous Oxide

  2. ((b))

    Carbon Monoxide

  3. ((c))

    Sulphur Dioxide

  4. ((d))

    Hydrogen Peroxide

Show Answer
Answer: ((a))

Nitrous Oxide

93

Plaster of Paris is a product of

  1. ((a))

    Magnesium

  2. ((b))

    Aluminum

  3. ((c))

    Calcium

  4. ((d))

    Sodium

Show Answer
Answer: ((a))

Magnesium

94

Which of the following compound is known as caustic soda?

  1. ((a))

    NaOH

  2. ((b))

    NaHCO3

  3. ((c))

    NaCl

  4. ((d))

    Na2CO3

Show Answer
Answer: ((a))

NaOH

95

A mirror producing a virtual image larger than the object is:

  1. ((a))

    plane

  2. ((b))

    concave

  3. ((c))

    convex

  4. ((d))

    spherical

Show Answer
Answer: ((a))

plane

96

Which of the following is not a characteristic of 'solid'?

  1. ((a))

    A solid has a fixed volume.

  2. ((b))

    Solids can be compressed easily.

  3. ((c))

    Solids can break when subjected to force.

  4. ((d))

    It is difficult to change the shape of solids, so they are hard

Show Answer
Answer: ((a))

A solid has a fixed volume.

97

Humidity of air is measured by________.

  1. ((a))

    Hygrometer

  2. ((b))

    Nanometer

  3. ((c))

    Glucometer

  4. ((d))

    Barometer

Show Answer
Answer: ((a))

Hygrometer

98

What is the CGS unit of temperature?

  1. ((a))

    Kelvin

  2. ((b))

    Reaumur

  3. ((c))

    Celsius

  4. ((d))

    Fahrenheit

Show Answer
Answer: ((a))

Kelvin

99

The green colours seen in the fireworks is due to the presence of ________.

  1. ((a))

    Sodium

  2. ((b))

    Barium

  3. ((c))

    Chromium

  4. ((d))

    Strontium

Show Answer
Answer: ((a))

Sodium

100

Which of the following has least percentage of carbon:

  1. ((a))

    Malleable iron

  2. ((b))

    Pig iron

  3. ((c))

    Stainless steel

  4. ((d))

    Wrought iron

Show Answer
Answer: ((a))

Malleable iron

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