__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

Question

__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

A. Pyrex

C. Lead

Correct Answer :

A. Pyrex

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Comment

99.5% purity oxygen is used in

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Wet chlorine gas produced during electrolysis of brine is dehydrated by

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Sodium carbonate (soda ash) is not used in the manufacture of

B. Sugar

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Which of the following impurities in feed water for high pressure boiler is the most detrimental?

A. Silica

Discuss this answer

__________ acid is an unsaturated fatty acid.

B. Oleic

D. Oxalic

Discuss this answer

Oils and fats are converted to soap in a process called

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Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

A. 10

B. 50

C. 80

D. 95

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Which of the following fuel gases contains maximum amount of carbon monoxide?

Discuss this answer

Sulphuric acid completely saturated with sulphur trioxide is called

B. Oleum

Discuss this answer

__________ paper is used in the manufacture of newsprint paper.

B. Board

C. Tissue

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Presence of carbonaceous matter in the sewage

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Paper pulp produced by Kraft/sulphate process is

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Glycerine is a by-product of the __________ industry.

A. Soap

D. Paint

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Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces

B. Dacron

D. PVC

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__________ is a polysaccharide.

B. Starch

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Function of thinner in a paint is to

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Permanent hardness of water can be removed by

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Percentage of glycerine present in the spent lye obtained during soap manufacture is about

A. 0.5

B. 5

C. 20

D. 35

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__________ of rubber decreases after its vulcanisation.

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Le-Blanc process is a primitive process for the manufacture of

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A 'unit process' is exemplified by the

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

B. Fibre

C. Lead

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Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

C. H₂

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Refractory bricks having high thermal conductivity is desirable, when it is to be used in the

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Essential oils are usually obtained using

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__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.

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Starting material for the production of butadiene in India is

B. Benzol

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Pick out the endothermic reaction out of the following.

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Digestion of wood-base materials (for manufacture of pulp) is done to

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Sodium chloride content in sea water is about __________ gms/litre.

A. 2

B. 10

C. 25

D. 50

Discuss this answer

Answer 1

B. Soda lime

Answer 2

D. High silica

Answer 3

A. Cutting and welding by oxy-acetylene flame

Answer 4

B. Hospitals for medicinal purposes

Answer 5

C. Gas masks and artificial breathing apparatus

Answer 6

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

Answer 7

A. Spraying 66° Be H2SO4 counter current to the flow of the gas

Answer 8

B. Passing it through a bed of diatomaceous earth

Answer 9

C. Passing it through a bed of silica gel

Answer 10

D. None of these

Answer 11

A. Fire extinguishers

Answer 12

C. Baking powder

Answer 13

D. Detergents

Answer 14

B. Dissolved oxygen

Answer 15

C. Suspended salt

Answer 16

D. Dissolved salt

Answer 17

A. Palmitic

Answer 18

C. Stearic

Answer 19

A. Hydrogenation

Answer 20

B. Esterification

Answer 21

C. Saponification

Answer 22

D. None of these

Answer 23

A. Coke oven gas

Answer 24

B. Water gas

Answer 25

C. Blast furnace gas

Answer 26

D. L.D. converter gas

Answer 27

A. Concentrated sulphuric acid

Answer 28

C. Sulphurous acid

Answer 29

D. Dilute sulphuric acid

Answer 30

A. Ground-wood

Answer 31

D. Wrapping

Answer 32

A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures

Answer 33

B. Reduces sulphate ions to sulphides causing obnoxious smell

Answer 34

C. Increases the quantity of chlorine used for its purification

Answer 35

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

Answer 36

A. Bleached easily

Answer 37

B. Dull white in color

Answer 38

C. Strong fibrous

Answer 39

D. Dark colored

Answer 40

B. Detergent

Answer 41

C. Oil hydrogenation

Answer 42

A. Nylon-6

Answer 43

C. Polyester

Answer 44

A. Maltose

Answer 45

C. Sucrose

Answer 46

D. Glucose

Answer 47

A. Accelerate the oxidation of oil

Answer 48

B. Prevent gelling of the paint

Answer 49

C. Suspend pigments & dissolve film forming materials

Answer 50

D. Form a protective film

Answer 51

A. Addition of soda ash to it

Answer 52

B. Treating it with zeolites

Answer 53

C. Passing it through sodium hexametaphosphate

Answer 54

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

Answer 55

A. Resistance to the action of organic solvent

Answer 56

B. Tackiness

Answer 57

C. Maximum service temperature

Answer 58

D. Tensile strength

Answer 59

A. Caustic soda

Answer 60

B. Soda ash

Answer 61

C. Bromine from sea water

Answer 62

D. Hydrochloric acid

Answer 63

A. Distillation

Answer 64

B. Hydrogenation of oils

Answer 65

C. Absorption

Answer 66

D. Humidification

Answer 67

A. Soda-lime

Answer 68

D. Borosilicate

Answer 69

A. Na₂CO₃

Answer 70

B. NaHCO₃

Answer 71

D. None of these

Answer 72

A. L.D. converter

Answer 73

B. Blast furnace

Answer 74

C. Rotary kiln

Answer 75

D. Recuperator

Answer 76

A. Steam distillation

Answer 77

B. Extractive distillation

Answer 78

C. Solvent extraction

Answer 79

D. Leaching

Answer 80

A. Chlorine

Answer 81

B. Ammonium chloride

Answer 82

C. Sodium carbonate

Answer 83

D. Sodium bi-carbonate

Answer 84

A. Naphthalene

Answer 85

C. Ethyl alcohol

Answer 86

D. Phthalic anhydride

Answer 87

A. C+ ½O₂ = CO

Answer 88

B. CO + 3H₂ = CH₄ + H₂O

Answer 89

C. CaCO₃ = CaO + CO₂

Answer 90

D. CO + ½O₂ = CO₂

Answer 91

A. Remove lignin

Answer 92

B. Produce long fibres

Answer 93

C. Prevent deterioration on storage

Answer 94

D. None of these

__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

99.5% purity oxygen is used in

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Sodium carbonate (soda ash) is not used in the manufacture of

Which of the following impurities in feed water for high pressure boiler is the most detrimental?

__________ acid is an unsaturated fatty acid.

Oils and fats are converted to soap in a process called

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

Which of the following fuel gases contains maximum amount of carbon monoxide?

Sulphuric acid completely saturated with sulphur trioxide is called

__________ paper is used in the manufacture of newsprint paper.

Presence of carbonaceous matter in the sewage

Paper pulp produced by Kraft/sulphate process is

Glycerine is a by-product of the __________ industry.

Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces

__________ is a polysaccharide.

Function of thinner in a paint is to

Permanent hardness of water can be removed by

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

__________ of rubber decreases after its vulcanisation.

Le-Blanc process is a primitive process for the manufacture of

A 'unit process' is exemplified by the

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

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

Refractory bricks having high thermal conductivity is desirable, when it is to be used in the

Essential oils are usually obtained using

__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.

Starting material for the production of butadiene in India is

Pick out the endothermic reaction out of the following.

Digestion of wood-base materials (for manufacture of pulp) is done to

Sodium chloride content in sea water is about __________ gms/litre.

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