Basic oxide is absent in __________ glass.

Question

Basic oxide is absent in __________ glass.

A. Flint

B. Pyrex

C. Quartz

Correct Answer :

C. Quartz

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Iron ore hematite is concentrated using

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Glauber's salt is chemically

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Pick out the wrong statement pertaining to the soap manufacture.

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The difference between saponification value and acid value is

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Which one of the following is not likely to be a constituent of vegetable oils?

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L.D. converter is used in the production of

B. Steel

C. Copper

D. Zinc

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Claude process of gas liquefaction employs

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Penicillin, an antibiotic drug was discovered by

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__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

B. Bosch

C. Solvay

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Styrene-butadiene-rubber (SBR) as compared to natural rubber has

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Which of the following is a constituent of coffee?

C. Calgon

D. Lignin

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A substance produced by a living organism and capable of anti-microbial activity is called a/an

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Lithophane is

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Frasch process is for

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Pick out the exothermic reaction out of the following:

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__________ iron is the purest form of iron.

A. Cast

C. Pig

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

B. Lignin

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Which of the following is a constituent of vinegar?

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Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces

B. Dacron

D. PVC

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Extraction of __________ employs an electrolytic process.

B. Silver

C. Copper

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Cation exchanger is regenerated usually with

A. NaOH

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Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.

Discuss this answer

Bakelite is

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Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

A. 25

B. 60-70

Discuss this answer

Commonly used glass is known as the __________ glass.

A. Flint

B. Hard

C. Pyrex

D. Soda

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Helium is produced on commercial scale from

A. Air

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More than 100 percent of __________ is present in oleum.

A. SO₃

D. SO₂

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Which of the following has sodium bicarbonate as its main constituent?

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Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about

B. 1 to 5

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In the Solvay process, the product from the calciner is

Discuss this answer

Answer 1

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

Answer 2

A. Electromagnetic separation mainly

Answer 3

B. Gravity separation

Answer 4

C. Froth floatation

Answer 5

D. Roasting

Answer 6

A. Calcium sulphate

Answer 7

B. Potassium sulphate

Answer 8

C. Potassium chlorate

Answer 9

D. None of these

Answer 10

A. Transparent soaps are made by cold process

Answer 11

B. Organic pigments are used as colouring materials in the soap manufacture

Answer 12

C. Both laundry as well as toilet soaps are manufactured by hot process

Answer 13

D. Colourless rosin is used in the manufacture of laundry soaps

Answer 14

A. Called ester value

Answer 15

B. Always negative

Answer 16

C. Constant for all fatty oils

Answer 17

D. None of these

Answer 18

A. Citric acid

Answer 19

B. Oleic acid

Answer 20

C. Stearic acid

Answer 21

D. Glycerol

Answer 22

A. Pig iron

Answer 23

A. Merely compression of gas beyond its critical pressure

Answer 24

B. Joule-Thomson expansion cooling

Answer 25

C. Heat exchange with colder stream

Answer 26

D. Adiabatic expansion against a piston or in a turbine

Answer 27

A. Alexander

Answer 28

B. Flaming

Answer 29

C. Doctor Zhivago

Answer 30

D. None of these

Answer 31

A. Ostwald's

Answer 32

D. Haber's

Answer 33

A. Poorer tensile strength

Answer 34

B. Poorer resistance to oxidation

Answer 35

C. Greater amount of heat build-up under heavy loading

Answer 36

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

Answer 37

A. Caffeine

Answer 38

B. Nicotine

Answer 39

A. Antibiotic

Answer 40

B. Antiseptic

Answer 41

C. Disinfectant

Answer 42

D. None of these

Answer 43

A. Explosive

Answer 44

B. White lead

Answer 45

C. Filter aid

Answer 46

D. ZnS (white pigment)

Answer 47

A. Making oxygen

Answer 48

B. Producing helium

Answer 49

C. Mining sulphur

Answer 50

D. Making nitrogen

Answer 51

A. C + H₂O = CO + H₂

Answer 52

B. CaC₂ + H₂O = Ca(OH)₂ + C₂H₂

Answer 53

C. MgCO₃ = MgO + CO₂

Answer 54

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

Answer 55

B. Wrought

Answer 56

D. High silicon

Answer 57

A. Cellulose

Answer 58

C. Both (A) & (B)

Answer 59

D. None of these

Answer 60

A. Around 10% alcohol

Answer 61

B. Around 1% acetic acid

Answer 62

C. Both (A) and (B)

Answer 63

D. Neither (A) nor (B)

Answer 64

A. Nylon-6

Answer 65

C. Polyester

Answer 66

A. Aluminium

Answer 67

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

Answer 68

B. H₂SO₄

Answer 69

C. Hydrazine

Answer 70

D. Alum solution

Answer 71

A. Mechanical

Answer 72

B. Sulphate/Kraft

Answer 73

C. Sulphite

Answer 74

D. Neutral sulphite semi-chemical

Answer 75

A. Same as Polytetrafluoroethylene (PTFE)

Answer 76

B. An inorganic polymer

Answer 77

C. Same as thermosetting phenol-formaldehyde

Answer 78

D. Not a polymer

Answer 79

C. 150-200

Answer 80

D. 250-300

Answer 81

B. Natural gas

Answer 82

C. Coke oven gas

Answer 83

D. None of these

Answer 84

B. H₂SO₄

Answer 85

C. H₂SO₃

Answer 86

A. Baking soda

Answer 87

B. Baking powder

Answer 88

C. Washing soda

Answer 89

D. None of these

Answer 90

A. 0.1 to 0.5

Answer 91

C. 5 to 10

Answer 92

D. 15 to 25

Answer 93

A. Light soda ash

Answer 94

B. Dense soda ash

Answer 95

C. Sodium bicarbonate

Answer 96

D. Dehydrated soda ash

Basic oxide is absent in __________ glass.

Correct Answer :

Show all Chemical Process MCQ

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