Flash point of most vegetable oils is about __________ °C.

Question

Flash point of most vegetable oils is about __________ °C.

A. 50

B. 100

C. 200

D. 300

Correct Answer :

C. 200

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The most widely used coagulant for removing suspended impurities from water is

D. Alum

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Aryl benzene sulphonate (ABS) is a

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Lubricating greases are a mixture of

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H2S is scrubbed from refinery gases by absorption using

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Fusion of limestone and __________ produces high alumina cement.

A. Sand

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

A. Lime

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Hydrophilic group of a soap or detergent solution is

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Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

A. CaO

B. MnO₂

C. ZnO

D. FeS

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

A. 1 - 2

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Bitterns is a/an

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The main use of HCl is in the

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Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

B. Soap

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Portland cement consists mainly of

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Fat dispersed in water is exemplified by

B. Gel

C. Butter

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Which of the following is a constituent of vinegar?

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Which glass is usually used in optical work?

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Pick out the wrong statement.

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Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

A. Carbon

C. Lead

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Thermosetting plastic materials

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

A. Metals

B. Alloys

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Pick out the wrong statement.

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Shrinkage volume in cement setting does not depend upon the

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Antibiotic

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Poly Tetrafluoroethylene (P.T.F.E.) is known as

B. Teflon

D. Dacron

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Baking soda is chemically represented by

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Dense soda ash used in the manufacture of glass, is chemically represented by

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Synthesis gas is a mixture of

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Which of the following is an endothermic reaction?

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Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

Discuss this answer

Pick out the correct statement.

Discuss this answer

Answer 1

A. Bleaching powder

Answer 2

B. Chlorine

Answer 3

C. Calcium sulphate

Answer 4

A. Detergent

Answer 5

B. Plasticiser for unsaturated polyester

Answer 6

C. Starting material for the synthesis of glycerine

Answer 7

D. Coating ingredient for photographic film

Answer 8

A. Mineral oil, soap and additives

Answer 9

B. Mineral oil and metallic soap

Answer 10

C. Mineral oil and fatty oil

Answer 11

D. Fatty oil and metallic soap

Answer 12

A. Dilute H₂SO₄

Answer 13

B. Ethanol amine

Answer 14

C. Chilled water

Answer 15

D. Tri-butyl phosphate

Answer 16

B. Bauxite

Answer 17

C. Quicklime

Answer 18

D. Calcite

Answer 19

B. Sulphuric acid

Answer 20

C. Chlorine

Answer 21

D. Sodium bisulphite

Answer 22

A. Water hating

Answer 23

B. Soil loving

Answer 24

C. Water loving

Answer 25

D. None of these

Answer 26

B. 15 - 20

Answer 27

C. 50 - 60

Answer 28

D. 80 - 85

Answer 29

A. Unsaturated fat

Answer 30

B. Starting material for the production of iodine

Answer 31

C. By-product of chlor-alkali industry

Answer 32

D. None of these

Answer 33

A. Drilling of petroleum wells and pickling of steel sheets

Answer 34

B. Manufacture of cationic detergent

Answer 35

C. Treatment of spent fuel of nuclear reactor

Answer 36

D. None of these

Answer 37

A. Explosive

Answer 38

C. Detergent

Answer 39

D. Analgesic drug

Answer 40

A. CaO & SiO₂

Answer 41

B. SiO₂ & Al₂O₃

Answer 42

C. CaO & Al₂O₃

Answer 43

D. CaO & Fe₂O₃

Answer 44

A. Colloids

Answer 45

D. Emulsion

Answer 46

A. Around 10% alcohol

Answer 47

B. Around 1% acetic acid

Answer 48

C. Both (A) and (B)

Answer 49

D. Neither (A) nor (B)

Answer 50

A. Lead glass

Answer 51

B. High silica (borosilicate) glass

Answer 52

C. Photo-sensitive glass

Answer 53

D. Fibre glass

Answer 54

A. High early strength cement are made from materials having high silica to lime ratio

Answer 55

B. The function of gypsum in cement is to enhance its initial setting rate

Answer 56

C. Acid resistant cements are known as silicate cement

Answer 57

D. Major component of greyish Portland cement is tricalcium silicate

Answer 58

B. Arsenic

Answer 59

D. Sulphur

Answer 60

A. Can be repeatedly melted

Answer 61

B. Is useful for melt casting

Answer 62

C. Cannot be melted after forming

Answer 63

D. Is useful for spinning

Answer 64

C. Refractories

Answer 65

D. Non-metals

Answer 66

A. Conversion of SO₂ to SO₃ in Monsanto-4 pass converter is about 98%

Answer 67

B. The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with sulphur trioxide

Answer 68

C. Vitriol oil is nothing but technical sulphuric acid

Answer 69

D. Decomposition of sulphuric acid on heating does not start before its boiling

Answer 70

A. Sand to cement ratio

Answer 71

B. Water to cement ratio

Answer 72

C. Ambient temperature fluctuation

Answer 73

D. Drying period

Answer 74

A. Inhibits/destroys the growth of microorganisms

Answer 75

B. Is used as a pain reliever

Answer 76

C. Is an antimalarial

Answer 77

D. Is an anaesthetic

Answer 78

A. Bakelite

Answer 79

C. Celluloid

Answer 80

A. Na₂CO₃

Answer 81

B. NaHCO₃

Answer 82

C. Na₂CO₃.H₂O

Answer 83

D. Na₂CO₃.10H₂O

Answer 84

A. Na₂CO₃

Answer 85

B. Na₂CO₃.10H₂O

Answer 86

C. Na₂CO₃.H₂O

Answer 87

D. Na₂HCO₃

Answer 88

A. CO and H₂

Answer 89

B. N₂ and H₂

Answer 90

C. H₂, CH₄ and CO

Answer 91

D. CO₂ and H₂

Answer 92

A. Absorption of SO₃ in 98% H₂SO₄

Answer 93

B. C + H₂O = CO + H₂

Answer 94

C. Thermal dissociation of iron pyrites

Answer 95

D. Both (B) and (C)

Answer 96

A. Endothermic

Answer 97

B. Exothermic

Answer 98

C. Irreversible

Answer 99

D. Both (B) and (C)

Answer 100

A. A fat is converted into oil by its hydrogenation

Answer 101

B. There is no difference between a fat and an oil so far as its physical properties are concerned

Answer 102

C. All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms

Answer 103

D. Vegetable oils are classified as drying, non-drying and semi drying oils depending upon their fatty acids content

Flash point of most vegetable oils is about __________ °C.

Correct Answer :

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