Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

Question

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

A. 25

B. 60-70

Correct Answer :

B. 60-70

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Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

A. -53

B. -103

C. -183

D. -196

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Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about

B. 1 to 5

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Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

A. Drying

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Vegetable oils and fats basically differ in their

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The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

B. Oleum

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Sulphuric acid is mainly used in the __________ industry.

B. Steel

C. Paper

D. Paint

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Cement mainly contains

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Viscose rayon is chemically

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Type of glass used in optical work is the __________ glass.

B. Fibre

C. Lead

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Main constituents of natural rubber is

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Plasticisers are added to paints to

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Solvay process is used for the manufacture of

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Which of the following is an explosive?

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The major use of butadiene is

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Roasting of metallurgical ores is done mainly to

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Which is a high grade pulp?

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Low purity oxygen is used for

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High purity nitrogen is used in

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During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

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H2S is scrubbed from refinery gases by absorption using

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Nylon-66 is so named because the

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Rotary kiln is not involved in the production of

A. Cement

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Answer 1

C. 150-200

Answer 2

D. 250-300

Answer 3

A. Naphthalene

Answer 4

B. Benzene

Answer 5

C. Toluene

Answer 6

D. Aniline

Answer 7

A. Oxidation of naphthalene

Answer 8

B. Oxidation of benzene

Answer 9

C. Dehydrogenation of ethyl benzene

Answer 10

D. None of these

Answer 11

A. Inhibits/destroys the growth of microorganisms

Answer 12

B. Is used as a pain reliever

Answer 13

C. Is an antimalarial

Answer 14

D. Is an anaesthetic

Answer 15

A. Hydration

Answer 16

B. Decomposition

Answer 17

C. Oxidation

Answer 18

D. Reduction

Answer 19

A. Benzol-toluol-xylol

Answer 20

B. Benzol-toluene-xylene

Answer 21

C. Benzene-toluol-xylol

Answer 22

D. Benzene-toluene-xylene

Answer 23

A. Increases

Answer 24

B. Increases linearly

Answer 25

C. Decreases

Answer 26

D. Decreases linearly

Answer 27

A. Less susceptible to chemical attack by molten fluxes and gases etc

Answer 28

B. Very strong

Answer 29

C. Having very high thermal conductivity

Answer 30

D. None of these

Answer 31

A. Final rolling out of paper

Answer 32

B. Cutting of fibres

Answer 33

C. Hydration of fibres

Answer 34

D. Fibrillation of fibre

Answer 35

A. 0.1 to 0.5

Answer 36

C. 5 to 10

Answer 37

D. 15 to 25

Answer 38

B. Semi-drying

Answer 39

C. Non-drying

Answer 40

D. None of these

Answer 41

A. Density ranges

Answer 42

B. Physical state

Answer 43

C. Chemical composition

Answer 44

D. Chemical properties

Answer 45

A. Dilute H₂SO₄

Answer 46

C. Ultraviolet light

Answer 47

D. None of these

Answer 48

A. Fertiliser

Answer 49

A. CaO, SiO₂, Al₂O₃

Answer 50

B. MgO, SiO₂, K₂O

Answer 51

C. Al₂O₃, MgO, Fe₂O₃

Answer 52

D. CaO, MgO, K₂O

Answer 53

A. Cellulose nitrate

Answer 54

B. Regenerated cellulose nitrate

Answer 55

C. Cellulose acetate

Answer 56

D. Regenerated cellulose acetate

Answer 57

A. Soda-lime

Answer 58

D. Borosilicate

Answer 59

A. Polystyrene

Answer 60

B. Polyisoprene

Answer 61

C. Polybutadiene

Answer 62

D. Polychlorophrene

Answer 63

A. Make it corrosion resistant

Answer 64

B. Make glossy surface

Answer 65

C. Give elasticity & prevent cracking of the film

Answer 66

D. Increase atmospheric oxidation

Answer 67

A. Caustic soda

Answer 68

B. Soda ash

Answer 69

C. Caustic potash

Answer 70

D. Soda lime

Answer 71

A. Nitro-glycerine

Answer 72

B. Trinitrotoluene (TNT)

Answer 73

C. Cellulose nitrate

Answer 74

D. All (A), (B), and (C)

Answer 75

A. As a plasticiser for unsaturated polyester

Answer 76

B. In the manufacture of synthetic rubber

Answer 77

C. As an anti-skinning agent in paint

Answer 78

D. None of these

Answer 79

A. Dehydrate it

Answer 80

B. Sinter the ore

Answer 81

C. Remove CO₂ & H₂O

Answer 82

D. Remove arsenic & sulphur

Answer 83

A. Rag pulp

Answer 84

B. Mechanical pulp

Answer 85

C. Sulphate pulp

Answer 86

D. Sulphite pulp

Answer 87

A. L.D. steel making

Answer 88

B. Cutting and welding of metals

Answer 89

C. Medicinal purposes

Answer 90

D. Chemical oxidation processes

Answer 91

A. Making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils

Answer 92

B. Fire fighting purposes

Answer 93

C. Both (A) & (B)

Answer 94

D. Neither (A) nor (B)

Answer 95

A. Increase the rate of absorption

Answer 96

B. Avoid corrosion

Answer 97

C. Reduce the cooling water circulation rate

Answer 98

D. None of these

Answer 99

A. Dilute H₂SO₄

Answer 100

B. Ethanol amine

Answer 101

C. Chilled water

Answer 102

D. Tri-butyl phosphate

Answer 103

A. Average degree of polymerisation of the polymer is 1966

Answer 104

B. Number of carbon atoms between two nitrogen atoms are 6

Answer 105

C. Number of nitrogen atoms between two carbon atoms are 6

Answer 106

D. Polymer was first synthesised in 1966

Answer 107

B. Lime from limestone

Answer 108

C. Slaked lime from quick lime

Answer 109

D. None of these

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

Correct Answer :

Show all Chemical Process MCQ

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