Heating of __________ to 120°C, produces plaster of paris.

Question

Heating of __________ to 120°C, produces plaster of paris.

B. Gypsum

Correct Answer :

B. Gypsum

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

B. Soap

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Coke used for the production of calcium carbide should have

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Enamels

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An alkali metal salt of Palmitic acid is known as

A. Soap

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More than 100 percent of __________ is present in oleum.

A. SO₃

D. SO₂

Discuss this answer

Chloramines are used in water treatment for

Discuss this answer

Oil is a/an

Discuss this answer

Gypsum is chemically

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Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

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Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

A. 10

B. 25

C. 50

D. 98

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Coagulant is used __________ filtration.

A. Before

B. After

C. During

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Teflon is

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Which of the following is not an insecticide?

D. Hexane

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Lurgi coal gasifier is a pressurised __________ bed reactor.

A. Moving

B. Fixed

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Calcination of gypsum produces

D. Lime

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Roasting of metallurgical ores is done mainly to

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__________ of rubber decreases after its vulcanisation.

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The most reactive allotropic form of phosphorus is __________ phosphorus.

A. Red

B. Yellow

C. Violet

D. Black

Discuss this answer

Molecular weight of plastics ranges from

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Ethanol amine is produced using ammonia and

D. Ethane

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The main use of activated carbon in water treatment is to control

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Blue vitriol is chemically

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Neoprene is a

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Chemical name of 'alum' is

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Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) for steam reforming of methane and
(ii) for ammonia synthesis.

Discuss this answer

__________ is an ore of lead.

A. Quartz

B. Galena

Discuss this answer

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

Discuss this answer

Parathion and Malathion are

Discuss this answer

Hydrogenation of oil does not

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Producer gas consists mainly of

Discuss this answer

Answer 1

A. Blue vitriol

Answer 2

C. Calcium silicate

Answer 3

D. Calcium sulphate

Answer 4

A. Explosive

Answer 5

C. Detergent

Answer 6

D. Analgesic drug

Answer 7

A. Low ash content

Answer 8

B. Low ignition temperature

Answer 9

C. High electrical resistivity

Answer 10

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

Answer 11

A. Give good glossy finish

Answer 12

B. Are same as varnish

Answer 13

C. Are prepared from non-drying oil

Answer 14

D. Do not contain pigment

Answer 15

B. Metallic soap

Answer 16

C. Detergent

Answer 17

D. Alkaloid

Answer 18

B. H₂SO₄

Answer 19

C. H₂SO₃

Answer 20

A. Disinfection and control of taste & odour

Answer 21

B. Corrosion control

Answer 22

C. Removing turbidity

Answer 23

D. Control of bacteria

Answer 24

A. Mixture of glycerides

Answer 25

B. Mixture of glycerides of fatty acids

Answer 26

C. Solid at normal temperature

Answer 27

D. Ester of alcohols other than glycerine

Answer 28

A. Calcium chloride

Answer 29

B. Potassium sulphate

Answer 30

C. Sodium sulphate

Answer 31

D. Calcium sulphate

Answer 32

A. 7-14 and 14-30

Answer 33

B. 7-14 and 40-50

Answer 34

C. 14 - 30 and 40-50

Answer 35

D. 10 - 20 and 40 - 50

Answer 36

D. To avoid

Answer 37

A. Phenol formaldehyde

Answer 38

B. An inorganic polymer

Answer 39

C. Poly tetra-fluoro-ethylene (P.T.F.E.)

Answer 40

D. A monomer

Answer 41

A. Hydrocyanic acid

Answer 42

B. Nicotine

Answer 43

C. Sodium fluoride

Answer 44

C. Fluidised

Answer 45

D. Entrained

Answer 46

A. Plaster of Paris

Answer 47

B. Salt cake

Answer 48

C. Nitre cake

Answer 49

A. Dehydrate it

Answer 50

B. Sinter the ore

Answer 51

C. Remove CO₂ & H₂O

Answer 52

D. Remove arsenic & sulphur

Answer 53

A. Resistance to the action of organic solvent

Answer 54

B. Tackiness

Answer 55

C. Maximum service temperature

Answer 56

D. Tensile strength

Answer 57

A. 5000 to 10000

Answer 58

B. 20000 to 250000

Answer 59

C. 500 to 5000

Answer 60

D. 106 to 109

Answer 61

A. Ethyl benzene

Answer 62

B. Ethylene oxide

Answer 63

C. Ethanol

Answer 64

A. Bacterial growth

Answer 65

B. Taste and odour

Answer 66

C. Turbidity

Answer 67

D. None of these

Answer 68

A. Copper sulphate

Answer 69

B. Ferrous sulphate

Answer 70

C. Copper nitrate

Answer 71

D. Aluminium sulphate

Answer 72

A. Monomer

Answer 73

B. Synthetic rubber

Answer 74

C. Polyester

Answer 75

D. None of these

Answer 76

A. Barium sulphate

Answer 77

B. Aluminium sulphate

Answer 78

C. Aluminium chloride

Answer 79

D. Calcium sulphate

Answer 80

A. (i) - Ni/Al₂O₃; (ii) - Cu - ZnO/Al₂O₃

Answer 81

B. (i) - Fe/Al₂O₃; (ii) - Cu - ZnO/Al₂O₃

Answer 82

C. (i) - Ni/Al₂O₃; (ii) - Fe/Al₂O₃

Answer 83

D. (i) - Fe/Al₂O₃; (ii) - Ni/Al₂O₃

Answer 84

C. Siderite

Answer 85

D. Chalcopyrite

Answer 86

A. Its calorific value is very less

Answer 87

B. Tar neutralises the residual acids present in pitch

Answer 88

C. It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop

Answer 89

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

Answer 90

A. Pesticides

Answer 91

B. Plasticisers for unsaturated polyesters

Answer 92

C. Pain-relieving drugs (analgesic)

Answer 93

D. Tranquilisers

Answer 94

A. Remove double bonds

Answer 95

B. Raise its melting point

Answer 96

C. Improve its resistance to oxidation

Answer 97

D. None of these

Answer 98

A. CO, CO₂ N₂, H₂

Answer 99

B. CO, H₂

Answer 100

C. H₂, CH₄

Answer 101

D. C₂H₂, CO₂, H₂

Heating of __________ to 120°C, produces plaster of paris.

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

Coke used for the production of calcium carbide should have

Enamels

An alkali metal salt of Palmitic acid is known as

More than 100 percent of __________ is present in oleum.

Chloramines are used in water treatment for

Oil is a/an

Gypsum is chemically

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

Coagulant is used __________ filtration.

Teflon is

Which of the following is not an insecticide?

Lurgi coal gasifier is a pressurised __________ bed reactor.

Calcination of gypsum produces

Roasting of metallurgical ores is done mainly to

__________ of rubber decreases after its vulcanisation.

The most reactive allotropic form of phosphorus is __________ phosphorus.

Molecular weight of plastics ranges from

Ethanol amine is produced using ammonia and

The main use of activated carbon in water treatment is to control

Blue vitriol is chemically

Neoprene is a

Chemical name of 'alum' is

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) for steam reforming of methane and
(ii) for ammonia synthesis.

__________ is an ore of lead.

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

Parathion and Malathion are

Hydrogenation of oil does not

Producer gas consists mainly of

Also checkout

Heating of __________ to 120°C, produces plaster of paris.

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

Coke used for the production of calcium carbide should have

Enamels

An alkali metal salt of Palmitic acid is known as

More than 100 percent of __________ is present in oleum.

Chloramines are used in water treatment for

Oil is a/an

Gypsum is chemically

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

Coagulant is used __________ filtration.

Teflon is

Which of the following is not an insecticide?

Lurgi coal gasifier is a pressurised __________ bed reactor.

Calcination of gypsum produces

Roasting of metallurgical ores is done mainly to

__________ of rubber decreases after its vulcanisation.

The most reactive allotropic form of phosphorus is __________ phosphorus.

Molecular weight of plastics ranges from

Ethanol amine is produced using ammonia and

The main use of activated carbon in water treatment is to control

Blue vitriol is chemically

Neoprene is a

Chemical name of 'alum' is

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:(i) __________ for steam reforming of methane and(ii) __________ for ammonia synthesis.

__________ is an ore of lead.

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

Parathion and Malathion are

Hydrogenation of oil does not

Producer gas consists mainly of

Also checkout

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) for steam reforming of methane and
(ii) for ammonia synthesis.