Sea water contains about __________ ppm of bromine.

Question

Sea water contains about __________ ppm of bromine.

A. 5

B. 70

C. 500

D. 1700

Correct Answer :

B. 70

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Which oil is preferred for paint manufacture?

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Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

A. 1 - 2

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Thermal pyrolysis of ethylene dichloride produces

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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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Adipic acid is an intermediate in the manufacture of

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Fish contains about __________ percent oil.

A. 5

B. 10

C. 20

D. 35

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With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

Discuss this answer

Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.

A. 1

B. 2.5

C. 5

D. 10

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Gun powder, which is an explosive comprises of charcoal, sulphur and

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Sulphur removal by heating of pyrite ore in presence of air is called its

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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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Alkylbenzene sulfonate (ABS) is a

B. Rubber

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Magnesium and calcium __________ cause temporary hardness of water.

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Isopropyl benzene produced by alkylation of benzene with propylene is known as

B. Cumene

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Starting material for the production of butadiene in India is

B. Benzol

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The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at

Discuss this answer

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Discuss this answer

Main use of hydrazine is

Discuss this answer

Pick out the wrong statement.

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How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?

A. 500°C

B. 750°C

Discuss this answer

Hydrolysis of sugar is called

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In the Lurgi coal gasifier

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A mixture of chlorine & sodium bromide acts as a/an

Discuss this answer

90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

A. < 0

B. 10-30

Discuss this answer

Enzymes are

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Phosphate rock is a raw material for the manufacture of

Discuss this answer

Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Discuss this answer

Penicillin is separated from fermented broth by

Discuss this answer

Sulphuric acid completely saturated with sulphur trioxide is called

B. Oleum

Discuss this answer

Soaps remove dirt by

Discuss this answer

Answer 1

A. Drying oil

Answer 2

B. Non-drying oil

Answer 3

C. Semi-drying oil

Answer 4

D. Saturated oil

Answer 5

B. 15 - 20

Answer 6

C. 50 - 60

Answer 7

D. 80 - 85

Answer 8

A. Trichloroethylene

Answer 9

B. Vinyl chloride

Answer 10

C. Ethanol amine

Answer 11

D. Ethylene oxide

Answer 12

A. Perspex

Answer 13

B. Nylon-66

Answer 14

C. Polystyrene

Answer 15

D. Bakelite

Answer 16

A. Increases

Answer 17

B. Increases linearly

Answer 18

C. Decreases

Answer 19

D. Decreases linearly

Answer 20

A. Glycerine

Answer 21

B. Salt petre

Answer 22

C. Nitro glycerine

Answer 23

D. Dynamite

Answer 24

A. Reduction

Answer 25

B. Roasting

Answer 26

C. Calcination

Answer 27

D. Smelting

Answer 28

A. Na₂CO₃

Answer 29

B. NaHCO₃

Answer 30

D. None of these

Answer 31

A. Detergent

Answer 32

C. Pesticide

Answer 33

D. Polyester

Answer 34

A. Carbonates

Answer 35

B. Bicarbonates

Answer 36

C. Phosphates

Answer 37

D. Sulphates

Answer 38

A. Neoprene

Answer 39

C. Gelatin

Answer 40

D. Mercaptans

Answer 41

A. Naphthalene

Answer 42

C. Ethyl alcohol

Answer 43

D. Phthalic anhydride

Answer 44

A. SASOL (in South Africa)

Answer 45

B. Redcar (U.K.)

Answer 46

C. Los Angeles (U.S.A.)

Answer 47

D. Trombay (India)

Answer 48

A. 1 atm & 100°C

Answer 49

B. 5 atm & 275°C

Answer 50

C. 100 atm & 500°C

Answer 51

D. 50 atm & 1000°C

Answer 52

A. As a rocket fuel

Answer 53

B. In water treatment

Answer 54

C. As a disinfectant

Answer 55

D. As fire retardant

Answer 56

A. Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate

Answer 57

B. Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide

Answer 58

C. Ordinary glass is represented chemically by Na₂O . CaO . 6SiO₂

Answer 59

D. Red color is imparted to glass by addition of arsenic oxide

Answer 60

C. 1000°C

Answer 61

D. 1500°C

Answer 62

A. Hydration

Answer 63

B. Inversion

Answer 64

C. Esterification

Answer 65

D. None of these

Answer 66

A. Coking coals cannot be used

Answer 67

B. Low carbon conversion efficiency is achieved

Answer 68

C. Entrainment of solids is higher

Answer 69

D. Large quantity of coal can be processed

Answer 70

A. Insecticides

Answer 71

B. Analgesic drug

Answer 72

C. Fire retardant

Answer 73

D. Hydrogenation catalyst

Answer 74

C. 250-280

Answer 75

D. 500-600

Answer 76

A. Proteins with high molecular weight (around 10,000)

Answer 77

B. Derived from living organisms

Answer 78

C. Catalyst for temperature sensitive reactions

Answer 79

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

Answer 80

A. Phosphoric acid

Answer 81

B. Phosphorous

Answer 82

C. Superphosphates

Answer 83

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

Answer 84

A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)

Answer 85

B. Inhibits its corrosive effects

Answer 86

C. Does not allow redeposition of dirt on the cleaned surface

Answer 87

D. None of these

Answer 88

A. Extraction with amyl or butyl acetate

Answer 89

B. Ternary Azeotropic distillation

Answer 90

C. Evaporator in calandria

Answer 91

D. Extractive distillation

Answer 92

A. Concentrated sulphuric acid

Answer 93

C. Sulphurous acid

Answer 94

D. Dilute sulphuric acid

Answer 95

A. Increasing the surface tension

Answer 96

B. Decreasing wettability

Answer 97

C. Supplying hydrophilic group

Answer 98

D. None of these

Sea water contains about __________ ppm of bromine.

Correct Answer :

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Related Questions

Which oil is preferred for paint manufacture?

Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

Thermal pyrolysis of ethylene dichloride produces

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

Adipic acid is an intermediate in the manufacture of

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