The most abundant noble gas present in air is

Question

The most abundant noble gas present in air is

A. neon

B. argon

C. helium

Correct Answer :

B. argon

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Which of the following biology laboratory?

A. Phenol

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In the nitrogen cycle, denitrifying bacteria

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Which one of the following metals is used to extract another metal?

A. Lead

B. Tin

C. Zinc

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The substance most abundantly found in sea water is

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Soda-water contains

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Annealing of glass is done in

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Radium was isolated from

A. galena

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Riboflavin deficiency causes

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Water has an unusually high bolling point because

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White vitriol is

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Washing soda is

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Which of the following carbon compounds is used as a fire extinguisher?

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Copper is purified by

A. poling

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Reduction involves

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Which of the following is an essential constituent of acids?

A. Oxygen

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One method by which the components of air can be separated is

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Sulphur is readily soluble in

A. Water

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Vinegar is the trade name for

C. phenol

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Acute diabetes patients smell of

B. ether

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The best specimen for drinking purposes is

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The number of neutrons in the nucleus of an atom of mass A and atomic number Z is given by

A. A - Z

B. A + Z

C. Z

D. A

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Water always contains hydrogen and oxygen in the ratio 1:8 by weight. This is in accordance with the

Discuss this answer

A substance used both as an explosive and as a germicide is

A. phenol

B. TNT

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Nylon is made from

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Suspended impurities in water are effectively removed by

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The rate of setting of cement is slowed down by the addition of

B. gypsum

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Flint glass contains

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The name rubber was given by

C. Dalton

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The science which deals with the chemistry of life processes is known as

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The non-metal which is electropositive is

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Answer 1

D. krypton

Answer 2

B. Benzaldehyde

Answer 3

C. Formaldehyde

Answer 4

D. Acetic acid

Answer 5

A. oxidise ammonia to nitrates

Answer 6

B. convert nitrogen into ammonia

Answer 7

C. oxidise ammonia to free nitrogen

Answer 8

D. oxidise ammonia to oxides of nitrogen

Answer 9

D. Aluminium

Answer 10

A. magnesium chloride

Answer 11

B. sodium chloride

Answer 12

C. calcium sulphate

Answer 13

D. potassium chloride

Answer 14

A. sodium bicarbonate

Answer 15

B. sodium carbonate

Answer 16

C. carbonic acid

Answer 17

D. sodium hydroxide

Answer 18

A. a cupel

Answer 19

B. a long narrow chamber

Answer 20

C. an open furnace

Answer 21

D. a closed furnace

Answer 22

B. dolomite

Answer 23

C. sylvine

Answer 24

D. pitchblende

Answer 25

A. tongue inflammation

Answer 26

B. pellagra

Answer 27

C. night blindness

Answer 28

D. anaemia

Answer 29

A. its molecular weight is low

Answer 30

B. it is denser than ice

Answer 31

C. it is a good solvent for many ionic substances

Answer 32

D. the molecules of water are joined by hydrogen bonds

Answer 33

A. ZnSO4 . 7H2O

Answer 34

B. FeSO4 . 7H2O

Answer 35

C. MgSO4 . 7H2O

Answer 36

D. CaSO4 . 2H2O

Answer 37

A. sodium hydroxide

Answer 38

B. sodium carbonate

Answer 39

C. sodium bicarbonate

Answer 40

D. potassium chloride

Answer 41

A. Carbon disulphide

Answer 42

B. Chloroform

Answer 43

C. Carbon tetrachloride

Answer 44

D. Methylene chloride

Answer 45

B. tempering

Answer 46

C. calcination

Answer 47

D. galvanising

Answer 48

A. loss of electrons

Answer 49

B. gain of electrons

Answer 50

C. gain of oxygen

Answer 51

D. removal of hydrogen

Answer 52

B. Nitrogen

Answer 53

C. Hydrogen

Answer 54

D. Chlorine

Answer 55

A. shaking with caustic soda solution

Answer 56

B. shaking with water

Answer 57

C. fractional distillation of liquid air

Answer 58

D. passing air over heated magnesium

Answer 59

B. Alcohol

Answer 60

C. Carbon-di-sulphide

Answer 61

D. Sodium chloride solution

Answer 62

A. chloroform

Answer 63

B. acetic acid

Answer 64

D. carbon tetrachloride

Answer 65

A. acetone

Answer 66

C. ethyl alcohol

Answer 67

D. methyl alcohol

Answer 68

A. rain water

Answer 69

B. river water

Answer 70

C. conductivity water

Answer 71

D. deep well water

Answer 72

A. Law of Multiple Proportions

Answer 73

B. Law of Definite Proportions

Answer 74

C. Law of Conservation of Mass

Answer 75

D. Law of Reciprocal Proportions

Answer 76

C. picric acid

Answer 77

D. iodoform

Answer 78

A. terephthalic acid and ethylene glycol

Answer 79

B. hexamethylene diamine and adipic acid

Answer 80

C. cellulose nitrate

Answer 81

D. cellulose acetate

Answer 82

A. adding milk of lime

Answer 83

B. filtering through sand

Answer 84

C. adding filter alum

Answer 85

D. chlorination

Answer 86

A. quicklime

Answer 87

C. soda lime

Answer 88

D. bleaching powder

Answer 89

A. potassium and lead silicates

Answer 90

B. zinc and barium borosilicates

Answer 91

C. potassium and calcium silicates

Answer 92

D. sodium and calcium silicates

Answer 93

A. Lavoisier

Answer 94

B. Priestley

Answer 95

D. Avogadro

Answer 96

A. electrochemistry

Answer 97

B. physical chemistry

Answer 98

C. biochemistry

Answer 99

D. tinctorial chemistry

Answer 100

A. chlorine

Answer 101

B. nitrogen

Answer 102

C. sulphur

Answer 103

D. hydrogen

The most abundant noble gas present in air is

Correct Answer :

Show all General Chemistry MCQ

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