Chalcopyrite is the main ore of

Question

Chalcopyrite is the main ore of

A. Copper

B. Lead

C. Tin

D. Iron

Correct Answer :

A. Copper

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Comment

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

B. Soap

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Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

D. Dacron

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Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

A. Nickel

D. Iron

Discuss this answer

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

A. -83

B. -183

C. -196

D. -218

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Catalyst used in the hydrogenation of oil is

A. Nickel

C. Iron

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Widely used method for the conditioning of boiler feed water is the

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Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Discuss this answer

Dehydrogenation of ethyl benzene produces

C. Phenol

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__________ is a thermosetting plastic.

D. Teflon

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Flexible foam (for mattresses) is usually made of

A. PVC

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The most reactive allotropic form of phosphorus is __________ phosphorus.

A. Red

B. Yellow

C. Violet

D. Black

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Pick out the wrong statement.

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Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

C. Copper

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Neoprene is the trade name of

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Gun powder uses

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Wet chlorine gas produced during electrolysis of brine is dehydrated by

Discuss this answer

Naphthols are derivates of

C. Phenol

D. Xylene

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Riboflavin is a/an

Discuss this answer

Neoprene is chemically known as

Discuss this answer

Manufacture of phthalic anhydride uses __________ as a catalyst.

A. Ni

B. Cr

Discuss this answer

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

A. 25

B. 60-70

Discuss this answer

Reaction of calcium carbide with water produces a gas, which is used

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Pick out the endothermic reaction out of the following.

Discuss this answer

Dechlorination of treated water is necessary to

Discuss this answer

__________ paper is used in the manufacture of newsprint paper.

B. Board

C. Tissue

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Enzymes are organic catalysts used in the __________ reactions.

Discuss this answer

At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

Discuss this answer

Enamels

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Hydrazine (N₂H₄) is used mainly as a/an

Discuss this answer

Chemical name of soda ash is

Discuss this answer

Answer 1

A. Explosive

Answer 2

C. Detergent

Answer 3

D. Analgesic drug

Answer 4

A. Phthalic anhydride

Answer 5

B. Vinyl chloride

Answer 6

C. Maleic anhydride

Answer 7

B. Vanadium

Answer 8

C. Alumina

Answer 9

B. Platinum

Answer 10

D. Alumina

Answer 11

A. Cold lime process

Answer 12

B. Coagulation

Answer 13

C. Hot-lime soda process

Answer 14

D. Sequestration

Answer 15

A. Slaked lime

Answer 16

B. Soda lime

Answer 17

C. Calcium perchlorate

Answer 18

D. None of these

Answer 19

A. Styrene

Answer 20

B. Naphthalene

Answer 21

D. Benzoic acid

Answer 22

A. Polyvinyl chloride

Answer 23

B. Polythene

Answer 24

C. Bakelite

Answer 25

B. Silicone

Answer 26

C. Polyurethanes

Answer 27

D. Polyamides

Answer 28

A. Conversion of SO₂ to SO₃ in Monsanto-4 pass converter is about 98%

Answer 29

B. The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with sulphur trioxide

Answer 30

C. Vitriol oil is nothing but technical sulphuric acid

Answer 31

D. Decomposition of sulphuric acid on heating does not start before its boiling

Answer 32

A. Chromium

Answer 33

B. Arsenic

Answer 34

D. Manganese

Answer 35

A. Polyurethane

Answer 36

B. Phenol formaldehyde

Answer 37

C. Polychlorophrene

Answer 38

D. Styrene-butadiene rubber

Answer 39

A. Sulphur

Answer 40

B. Charcoal

Answer 41

C. Potassium nitrate

Answer 42

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

Answer 43

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

Answer 44

B. Passing it through a bed of diatomaceous earth

Answer 45

C. Passing it through a bed of silica gel

Answer 46

D. None of these

Answer 47

A. Methyl amine

Answer 48

B. Naphthalene

Answer 49

A. Vitamin

Answer 50

B. Analgesic drug

Answer 51

C. Anaesthetics

Answer 52

D. Anti-malarial drug

Answer 53

A. Polybutadiene

Answer 54

B. Styrene butadiene rubber (SBR)

Answer 55

C. Polyurethane

Answer 56

D. Polychlorophrene

Answer 57

C. V₂O₅

Answer 58

D. Al₂O₃

Answer 59

C. 150-200

Answer 60

D. 250-300

Answer 61

A. As an illuminant

Answer 62

B. For metal cutting/welding

Answer 63

C. Both (A) & (B)

Answer 64

D. Neither (A) nor (B)

Answer 65

A. C+ ½O₂ = CO

Answer 66

B. CO + 3H₂ = CH₄ + H₂O

Answer 67

C. CaCO₃ = CaO + CO₂

Answer 68

D. CO + ½O₂ = CO₂

Answer 69

A. Remove residual turbidity

Answer 70

B. Reduce the bacterial load on filter

Answer 71

C. Control taste and odour

Answer 72

D. Remove chlorinous taste

Answer 73

A. Ground-wood

Answer 74

D. Wrapping

Answer 75

A. Chemical

Answer 76

B. Biochemical

Answer 77

C. Photochemical

Answer 78

D. Electrochemical

Answer 79

A. Independent of

Answer 80

B. Directly proportional to

Answer 81

C. Inversely proportional to

Answer 82

D. Proportional to the square of

Answer 83

A. Give good glossy finish

Answer 84

B. Are same as varnish

Answer 85

C. Are prepared from non-drying oil

Answer 86

D. Do not contain pigment

Answer 87

A. Explosive

Answer 88

B. Rocket fuel

Answer 89

C. Detergents additive

Answer 90

D. None of these

Answer 91

A. Sodium bicarbonate

Answer 92

B. Sodium thiosulphate

Answer 93

C. Potassium carbonate

Answer 94

D. None of these

Chalcopyrite is the main ore of

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

Catalyst used in the hydrogenation of oil is

Widely used method for the conditioning of boiler feed water is the

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Dehydrogenation of ethyl benzene produces

__________ is a thermosetting plastic.

Flexible foam (for mattresses) is usually made of

The most reactive allotropic form of phosphorus is __________ phosphorus.

Pick out the wrong statement.

Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

Neoprene is the trade name of

Gun powder uses

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Naphthols are derivates of

Riboflavin is a/an

Neoprene is chemically known as

Manufacture of phthalic anhydride uses __________ as a catalyst.

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

Reaction of calcium carbide with water produces a gas, which is used

Pick out the endothermic reaction out of the following.

Dechlorination of treated water is necessary to

__________ paper is used in the manufacture of newsprint paper.

Enzymes are organic catalysts used in the __________ reactions.

At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

Enamels

Hydrazine (N₂H₄) is used mainly as a/an

Chemical name of soda ash is

Also checkout

Chalcopyrite is the main ore of

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

Catalyst used in the hydrogenation of oil is

Widely used method for the conditioning of boiler feed water is the

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Dehydrogenation of ethyl benzene produces

__________ is a thermosetting plastic.

Flexible foam (for mattresses) is usually made of

The most reactive allotropic form of phosphorus is __________ phosphorus.

Pick out the wrong statement.

Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

Neoprene is the trade name of

Gun powder uses

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Naphthols are derivates of

Riboflavin is a/an

Neoprene is chemically known as

Manufacture of phthalic anhydride uses __________ as a catalyst.

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

Reaction of calcium carbide with water produces a gas, which is used

Pick out the endothermic reaction out of the following.

Dechlorination of treated water is necessary to

__________ paper is used in the manufacture of newsprint paper.

Enzymes are organic catalysts used in the __________ reactions.

At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

Enamels

Hydrazine (N2H4) is used mainly as a/an

Chemical name of soda ash is

Also checkout

Hydrazine (N₂H₄) is used mainly as a/an