The amount of benzene present in pure Benzol is about __________ percent.

Question

The amount of benzene present in pure Benzol is about __________ percent.

A. 30

B. 50

C. 70

D. 90

Correct Answer :

C. 70

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Esterification reaction produces

C. Soap

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D. Nickel

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A. Metals

B. Alloys

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Solvent used for extraction of oil is

A. Hexane

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C. Copper

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Calcareous & argillaceous materials are used in the manufacture of

A. Lead

B. Cement

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__________ paper is used in the manufacture of newsprint paper.

B. Board

C. Tissue

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Refractory bricks burnt at very high temperature have got

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Terylene is

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Zeolite used in water softening process (cation exchange) is regenerated by washing with

A. Brine

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The ideal pulp for the manufacture of paper should have high __________ content.

B. Lignin

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Pick out the wrong statement.

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

A. 2

B. 10

C. 25

D. 50

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Multistage catalytic converter is not used in the

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Na2CO3 is called

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Which of the following is not a pyrite ore?

B. Galena

C. Gypsum

Discuss this answer

Bisphenol A is produced by the condensation of acetone with

D. Phenol

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Pick out the exothermic reaction out of the following:

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A good quality coal should have

Discuss this answer

Which of the following is a disaccharide?

C. Starch

Discuss this answer

Answer 1

A. Detergent

Answer 2

B. Vanaspati

Answer 3

D. Mercaptans

Answer 4

A. Alumina

Answer 5

B. Silica gel

Answer 6

C. Platinum

Answer 7

A. Pasteurisation of milk involves moderate heating followed by cooling

Answer 8

B. Bakeries and breweries make use of yeasts

Answer 9

C. Enzyme is a complex nitrogenous compound

Answer 10

D. Oils and fats are alkaloids

Answer 11

A. More unsaturated glycerides of fatty acids

Answer 12

B. Less unsaturated glycerides of fatty acids

Answer 13

C. Much higher reactivity to oxygen

Answer 14

D. Lower melting point

Answer 15

A. Produces 70% NaOH solution

Answer 16

B. Requires less specific power consumption for the production of chlorine

Answer 17

C. Requires lesser investment for similar capacity

Answer 18

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

Answer 19

C. Refractories

Answer 20

D. Non-metals

Answer 21

A. Activated carbon

Answer 22

B. Diatomaceous earth

Answer 23

C. Bauxite

Answer 24

D. Bentonite

Answer 25

B. Methyl ethyl ketone

Answer 26

C. Furfural

Answer 27

D. None of these

Answer 28

A. Bromine

Answer 29

B. Magnesium compounds

Answer 30

C. Potassium compounds

Answer 31

D. Sodium sulphate

Answer 32

A. Chromium

Answer 33

B. Arsenic

Answer 34

D. Manganese

Answer 35

A. Coke oven gas

Answer 36

B. Blast furnace gas

Answer 37

C. Producer gas

Answer 38

D. Water gas (blue gas)

Answer 39

A. Carbonating tower

Answer 40

B. Ammonia recovery

Answer 41

C. Ammonia recovery and size of the plant

Answer 42

D. Ammoniation of salt solution

Answer 43

C. Carbon disulphide

Answer 44

D. None of these

Answer 45

A. Ground-wood

Answer 46

D. Wrapping

Answer 47

A. Greater resistance to corrosion by slags

Answer 48

B. Less resistance to corrosion by slags

Answer 49

C. High spalling tendency

Answer 50

D. None of these

Answer 51

A. Same as Dacron

Answer 52

B. A polyester

Answer 53

C. Both (A) & (B)

Answer 54

D. Neither (A) nor (B)

Answer 55

B. Chloramines

Answer 56

C. Sodium bisulphite

Answer 57

D. Liquid chlorines

Answer 58

A. Cellulose

Answer 59

C. Both (A) & (B)

Answer 60

D. None of these

Answer 61

A. Remove impurities/gangue

Answer 62

B. Enhance rate of reaction

Answer 63

C. Accelerate reduction of ore

Answer 64

D. Separate slag from metal

Answer 65

A. The number of grams of iodine taken up by 100 gm of oil or fat

Answer 66

B. A measure of its unsaturation

Answer 67

C. Helpful in findings its adulteration & its suitability for making soap

Answer 68

D. Independent of the type of oil, whether it is drying or non-drying

Answer 69

A. Kraft method of pulp manufacture can process all types of fibrous raw materials

Answer 70

B. Digestion time for bagasse is less than that for wood base materials

Answer 71

C. Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method

Answer 72

D. None of these

Answer 73

A. Separation of isotopes of uranium from gaseous uranium hexafluoride

Answer 74

B. Separation of helium from natural gas

Answer 75

C. Desalination of brackish water to produce potable (drinking) water

Answer 76

D. Purification of oxygen

Answer 77

A. Conversion of SO2 to SO3

Answer 78

B. NH3 synthesis reaction

Answer 79

C. Both (A) and (B)

Answer 80

D. Neither (A) nor (B)

Answer 81

A. Washing soda

Answer 82

B. Soda ash

Answer 83

C. Plaster of Paris

Answer 84

D. Calcite

Answer 85

A. Celestite

Answer 86

D. Siderite

Answer 87

A. Formaldehyde

Answer 88

B. Ethyl alcohol

Answer 89

C. Diethyl ether

Answer 90

A. C + H₂O = CO + H₂

Answer 91

B. CaC₂ + H₂O = Ca(OH)₂ + C₂H₂

Answer 92

C. MgCO₃ = MgO + CO₂

Answer 93

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

Answer 94

A. Low fusion point of ash

Answer 95

B. High ash content

Answer 96

C. High sulphur content

Answer 97

D. None of these

Answer 98

A. Sucrose

Answer 99

B. Glucose

Answer 100

D. Maltose

The amount of benzene present in pure Benzol is about __________ percent.

Correct Answer :

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The amount of benzene present in pure Benzol is about __________ percent.

Correct Answer :

Show all Chemical Process MCQ

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The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is

Pick out the wrong statement.

Fats as compared to oils have

Diaphragm electrolytic cell as compared to mercury electrolytic cell

Electro deposition of metals i.e. electroplating is never done on

Yellow glycerine is made into white, using

Solvent used for extraction of oil is

Which of the following is not produced on commercial scale from sea water?

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Calcareous & argillaceous materials are used in the manufacture of

__________ paper is used in the manufacture of newsprint paper.

Refractory bricks burnt at very high temperature have got

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The ideal pulp for the manufacture of paper should have high __________ content.

Flux addition during smelting of ore is done to

Pick out the wrong statement. Iodine value of an oil or fat is

Pick out the wrong statement.

Reverse osmosis is normally used for the

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

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The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

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