The most commonly used substance to speed up the sedimentation of sewage is

Question

The most commonly used substance to speed up the sedimentation of sewage is

A. Lime

Correct Answer :

A. Lime

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Which of the following is not an abrasive material?

B. Pumice

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Cooking liquor in case of sulphite process is

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DDT stands for

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Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

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Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

A. 10

B. 50

C. 80

D. 95

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

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Which of the following is the main constituent of the mother liquor produced in salt industry?

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Pick out the wrong statement.

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Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

Discuss this answer

Process conditions in fermentator used for production of penicillin is

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Low temperature carbonisation of coal takes place at __________ °C.

A. 300

B. 1100

C. 700

D. 900

Discuss this answer

Which of the following is not responsible for causing permanent hardness of water?

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Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

A. Colour

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Aryl benzene sulphonate (ABS) is a

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Thorium is mainly used

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Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

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Rancidity of the fatty oil can be reduced by its

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Industrial production of chloroform requires acetone and

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Producer gas consists mainly of

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__________ of rubber decreases after its vulcanisation.

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Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

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Neoprene is a

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Main constituents of natural rubber is

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Fourdrinier machine is used in the manufacture of

B. Paper

D. Sugar

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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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Coal tar is used as a

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The major use of butadiene is

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High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

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Phenolic antiseptics are added in the __________ soap.

Discuss this answer

Sea water contains about __________ ppm of bromine.

A. 5

B. 70

C. 500

D. 1700

Discuss this answer

Answer 1

B. Sulphuric acid

Answer 2

C. Chlorine

Answer 3

D. Sodium bisulphite

Answer 4

A. Bakelite

Answer 5

C. Corundum

Answer 6

D. Carborundum

Answer 7

A. Sodium sulphite and sodium bisulphite

Answer 8

B. Magnesium sulphite and free SO2 in acid medium

Answer 9

C. Magnesium sulphate and magnesium bicarbonate

Answer 10

D. None of these

Answer 11

A. Diethyl-diphenyl-trichloromethane

Answer 12

B. Dichloro-diphenyl-trichloromethane

Answer 13

C. diphenyl-dichloro-trichloromethane

Answer 14

D. Dichloro-diphenyl-trichloroethane

Answer 15

A. Nitric acid

Answer 16

B. Sulphuric acid

Answer 17

C. Ammonium sulphate

Answer 18

D. Hydrochloric acid

Answer 19

A. Density difference

Answer 20

B. Wetting characteristics

Answer 21

C. Terminal velocities

Answer 22

D. None of these

Answer 23

A. Quick lime

Answer 24

B. Glauber's salt

Answer 25

C. Salt petre

Answer 26

D. Bromine

Answer 27

A. Strongly caking coal should not be used in the Lurgi gasifier

Answer 28

B. Acetylene gas cannot be used for illumination purpose

Answer 29

C. Water gas is called blue gas because of the color of the flame, when it is burnt

Answer 30

D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

Answer 31

A. Calcium sulphate

Answer 32

B. Sodium chloride

Answer 33

C. Sodium sulphate

Answer 34

D. Magnesium chloride

Answer 35

A. 25°C, 2 atm

Answer 36

B. 50°C, l0 atm

Answer 37

C. 30°C, 200 mm Hg (absolute)

Answer 38

D. 90°C, 45 atm

Answer 39

A. Ca(HCO₃)₂

Answer 40

B. CaCl₂

Answer 41

C. MgCl₂

Answer 42

D. None of these

Answer 43

B. Turbidity

Answer 44

C. Bacteria

Answer 45

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

Answer 46

A. Detergent

Answer 47

B. Plasticiser for unsaturated polyester

Answer 48

C. Starting material for the synthesis of glycerine

Answer 49

D. Coating ingredient for photographic film

Answer 50

A. For the manufacture of gas mantles

Answer 51

B. As a fissile fuel in a nuclear reactor

Answer 52

C. In the manufacture of hydrogen bomb

Answer 53

D. In the treatment of cancer

Answer 54

A. As a lubricant

Answer 55

B. As a rust preventive

Answer 56

C. In hard water for cleaning of cloth

Answer 57

D. As a foam depressant in distillation column

Answer 58

A. Decoloration

Answer 59

B. Hydrogenation

Answer 60

C. Oxidation

Answer 61

D. Purification

Answer 62

A. Phosgene

Answer 63

B. Calcium hypochlorite

Answer 64

C. Chlorine

Answer 65

D. Ammonium chloride

Answer 66

A. CO, CO₂ N₂, H₂

Answer 67

B. CO, H₂

Answer 68

C. H₂, CH₄

Answer 69

D. C₂H₂, CO₂, H₂

Answer 70

A. Resistance to the action of organic solvent

Answer 71

B. Tackiness

Answer 72

C. Maximum service temperature

Answer 73

D. Tensile strength

Answer 74

A. Is prone to thermal decomposition

Answer 75

B. Has high water solubility and is unstable

Answer 76

C. Is soluble in ammonium chloride and potassium chloride solution

Answer 77

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

Answer 78

A. Monomer

Answer 79

B. Synthetic rubber

Answer 80

C. Polyester

Answer 81

D. None of these

Answer 82

A. Polystyrene

Answer 83

B. Polyisoprene

Answer 84

C. Polybutadiene

Answer 85

D. Polychlorophrene

Answer 86

A. Nylon-6

Answer 87

C. Antibiotics

Answer 88

A. Fertiliser manufacture

Answer 89

B. Car battery solution

Answer 90

C. Synthesis of oleum

Answer 91

D. Water treatment

Answer 92

A. Binding material for coal briquettes

Answer 93

B. Fuel in rotary kiln

Answer 94

C. Binder in making carbon electrodes

Answer 95

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

Answer 96

A. As a plasticiser for unsaturated polyester

Answer 97

B. In the manufacture of synthetic rubber

Answer 98

C. As an anti-skinning agent in paint

Answer 99

D. None of these

Answer 100

A. Flocculate the impurities

Answer 101

B. Facilitate fast filtration

Answer 102

C. Both (A) and (B)

Answer 103

D. Neither (A) nor (B)

Answer 104

A. Shaving

Answer 105

B. Medicated

Answer 106

C. Metallic

Answer 107

D. Transparent

The most commonly used substance to speed up the sedimentation of sewage is

Correct Answer :

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Related Questions

Which of the following is not an abrasive material?

Cooking liquor in case of sulphite process is

DDT stands for

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

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

Which of the following is the main constituent of the mother liquor produced in salt industry?

Pick out the wrong statement.

Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

Process conditions in fermentator used for production of penicillin is

Low temperature carbonisation of coal takes place at __________ °C.

Which of the following is not responsible for causing permanent hardness of water?

Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

Aryl benzene sulphonate (ABS) is a

Thorium is mainly used

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Rancidity of the fatty oil can be reduced by its

Industrial production of chloroform requires acetone and

Producer gas consists mainly of

__________ of rubber decreases after its vulcanisation.

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

Neoprene is a

Main constituents of natural rubber is

Fourdrinier machine is used in the manufacture of

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

Coal tar is used as a

The major use of butadiene is

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

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Sea water contains about __________ ppm of bromine.

Also checkout

The most commonly used substance to speed up the sedimentation of sewage is

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Which of the following is not an abrasive material?

Cooking liquor in case of sulphite process is

DDT stands for

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

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

Which of the following is the main constituent of the mother liquor produced in salt industry?

Pick out the wrong statement.

Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

Process conditions in fermentator used for production of penicillin is

Low temperature carbonisation of coal takes place at __________ °C.

Which of the following is not responsible for causing permanent hardness of water?

Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove

Aryl benzene sulphonate (ABS) is a

Thorium is mainly used

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Rancidity of the fatty oil can be reduced by its

Industrial production of chloroform requires acetone and

Producer gas consists mainly of

__________ of rubber decreases after its vulcanisation.

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

Neoprene is a

Main constituents of natural rubber is

Fourdrinier machine is used in the manufacture of

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

Coal tar is used as a

The major use of butadiene is

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

Phenolic antiseptics are added in the __________ soap.

Sea water contains about __________ ppm of bromine.

Also checkout

Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove