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

Question

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

Correct Answer :

C. -183

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A. Colour

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B. Starch

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

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C. Alum

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DDT stands for

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Lurgi coal gasifier is a pressurised __________ bed reactor.

A. Moving

B. Fixed

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Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

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Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?

A. AgO

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Fat dispersed in water is exemplified by

B. Gel

C. Butter

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Sulphuric acid saturated with SO₃ is called

C. Oleum

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Pick out the endothermic reaction out of the following.

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Builders are added in soap to act as

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

B. Cumene

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Frasch process is for

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Ore concentration by froth floatation utilises the __________ of ore particles.

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Sucrose is a disaccharide consisting of

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Ultimate analysis of coal determines its __________ content.

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

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Salt cake is chemically represented by

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Resistance to fusion of the refractory under a steady rising temperature condition is called

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Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

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A mineral is termed as 'ore', if

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Pick out the wrong statement pertaining to nitric acid.

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Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

A. SO₃

B. Cl₂

C. NH₃

D. SO₂

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The temperature in the calcium carbide furnace is __________ °C.

Discuss this answer

Answer 1

B. Turbidity

Answer 2

C. Bacteria

Answer 3

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

Answer 4

A. Bauxite

Answer 5

B. Silicon carbide

Answer 6

C. Boron carbide

Answer 7

D. Calcium carbide

Answer 8

A. Maltose

Answer 9

C. Sucrose

Answer 10

D. Glucose

Answer 11

A. Independent of

Answer 12

B. Directly proportional to

Answer 13

C. Inversely proportional to

Answer 14

D. Proportional to the square of

Answer 15

A. Bleaching powder

Answer 16

B. Slaked lime

Answer 17

D. Copper sulphate

Answer 18

A. Cutting and welding by oxy-acetylene flame

Answer 19

B. Hospitals for medicinal purposes

Answer 20

C. Gas masks and artificial breathing apparatus

Answer 21

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

Answer 22

A. Chlorine

Answer 23

B. Ferric sulphate

Answer 24

C. Calcium sulphate

Answer 25

D. Activated carbon

Answer 26

A. Alexander

Answer 27

B. Flaming

Answer 28

C. Doctor Zhivago

Answer 29

D. None of these

Answer 30

A. Diethyl-diphenyl-trichloromethane

Answer 31

B. Dichloro-diphenyl-trichloromethane

Answer 32

C. diphenyl-dichloro-trichloromethane

Answer 33

D. Dichloro-diphenyl-trichloroethane

Answer 34

C. Fluidised

Answer 35

D. Entrained

Answer 36

A. Fertiliser manufacture

Answer 37

B. Car battery solution

Answer 38

C. Synthesis of oleum

Answer 39

D. Water treatment

Answer 40

B. Al₂O₃

Answer 41

C. ZnCl₂

Answer 42

D. Fe₂O₃

Answer 43

A. Colloids

Answer 44

D. Emulsion

Answer 45

A. Concentrated H₂SO₄

Answer 46

B. Sulphurous acid

Answer 47

D. None of these

Answer 48

A. C+ ½O₂ = CO

Answer 49

B. CO + 3H₂ = CH₄ + H₂O

Answer 50

C. CaCO₃ = CaO + CO₂

Answer 51

D. CO + ½O₂ = CO₂

Answer 52

A. Cleaning power booster

Answer 53

B. Anti-redeposition agent

Answer 54

C. Corrosion inhibitor

Answer 55

D. Fabric brightener

Answer 56

A. Neoprene

Answer 57

C. Gelatin

Answer 58

D. Mercaptans

Answer 59

A. Making oxygen

Answer 60

B. Producing helium

Answer 61

C. Mining sulphur

Answer 62

D. Making nitrogen

Answer 63

A. Density difference

Answer 64

B. Wetting characteristics

Answer 65

C. Terminal velocities

Answer 66

D. None of these

Answer 67

A. Glucose and glucose

Answer 68

B. Glucose and fructose

Answer 69

C. Glucose and galactose

Answer 70

D. Fructose and galactose

Answer 71

A. Carbon, hydrogen, nitrogen & sulphur

Answer 72

B. Carbon, ash, sulphur & nitrogen

Answer 73

C. Carbon, sulphur, volatile matter & ash

Answer 74

D. Carbon, volatile matter, ash & moisture

Answer 75

A. Insecticides

Answer 76

B. Analgesic drug

Answer 77

C. Fire retardant

Answer 78

D. Hydrogenation catalyst

Answer 79

A. Na₂SO₄

Answer 80

B. CaSO₄. ½H₂O

Answer 81

C. MgSO₄

Answer 82

D. BaSO₄

Answer 83

A. Spalling

Answer 84

B. Refractoriness

Answer 85

C. Both (A) & (B)

Answer 86

D. Neither (A) nor (B)

Answer 87

A. Trichloroethylene

Answer 88

B. Perchloroethylene

Answer 89

C. Parathion

Answer 90

D. Methanol

Answer 91

A. Make it corrosion resistant

Answer 92

B. Make glossy surface

Answer 93

C. Give elasticity & prevent cracking of the film

Answer 94

D. Increase atmospheric oxidation

Answer 95

A. A metal can be economically extracted from it

Answer 96

B. It contains ≥ 40% metal

Answer 97

C. The metal present in it is costly

Answer 98

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

Answer 99

A. About 90% of nitric acid is manufactured by Ostwald's process

Answer 100

B. It is a strong mono basic acid which reacts with almost all the metals except noble metals

Answer 101

C. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2)

Answer 102

D. Arc process of nitric acid manufacture is economical as compared to Ostwald's process

Answer 103

A. 200-300

Answer 104

B. 700-850

Answer 105

C. 2000-2200

Answer 106

D. 4000-4500

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

Correct Answer :

Show all Chemical Process MCQ

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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.

Correct Answer :

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