Chemical Engineering MCQs

Page No. 697

Coke oven gas consists mainly of ____________________?


aH2, & CH4

✓


bCO, & CO2

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cH2, & CO

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dCH4, & CO

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View Answer H2, & CH4

Soaps remove dirt by ____________________?


aIncreasing the surface tension

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bDecreasing wettability

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cSupplying hydrophilic group

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dNone of these

✓


View Answer None of these

Carbon content of pitch (residue of coal tar distillation) is around ________________ percent?


a70

✖


b55

✖


c80

✖


d94

✓


View Answer 94

Yeast is used in the manufacture of ____________________?


aPenicillin

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bAntibiotics

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cWine

✓


dPasteurised milk

✖


View Answer Wine

Most commonly used rubber vulcanising agent is___________________?


aSulphur

✓


bBromine

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cPlatinum

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dAlumina

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View Answer Sulphur

Systemic insecticides________________?


aAre absorbed throughout the plant

✓


bKill insects following external bodily contact

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cAre stomach poisons

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dEmit poisonous vapour

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Chemical name of Grignard reagent is__________________?


aSodium thiosulphate

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bEthyl magnesium chloride

✓


cSodium sulphite

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dSodium bicarbonate

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Phthalic anhydride is produced by the oxidation of _________________?


aNaphthalene

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bBenzene

✓


cToluene

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dAniline

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View Answer Benzene

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


a0.1 to 0.5

✓


b1 to 5

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c5 to 10

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d15 to 25

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View Answer 0.1 to 0.5

Phenol formaldehyde resin is used as an adhesive in making__________________?


aLaminates

✓


bCard boxes

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cFurniture

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dBooks

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View Answer Laminates

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