Chemical Process - Chemical Engineering Questions and Answers

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Which of the following is not an insecticide?

Hydrocyanic acid

Nicotine

Sodium flouride

Hexane

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Nylon 66 is so named because the

Average degree of polymerisation of the polymer is 1966

Number of carbon atoms between two nitrogen atoms are 6

Number of nitrogen atoms between two carbon atoms are 6

Polymer was first synthesised in 1966

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Low purity oxygen is used for

L.D. steel making

Cutting and welding of metals

Medicinal purposes

Chemical oxidation processes

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Which of the following is not a food additive?

Citric acid

Invertage

Benzoyl peroxide

Ammonium chloride

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Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

Oxidation of Na+ ions

Oxidation of Cl- ions

Reduction of Na+ ions

Reduction of Cl- ions

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Which of the following sugars is the sweetest?

Glucose

Fructose

Sucrose

Lactose

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Concentration of sulphide ores is done usually by

Roasting

Smelting

Froth floatation

Electro magnetic separation

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Finely ground calcium aluminate & silicate is a/an

Cermet

Cement

Abrasive

Explosive

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Tall oil obtained as a by-product from the black liquor recovery is

A black, sticky & viscous liquid

Used in the manufacture of greases, emulsions & soaps

Composed mainly of rosin & fatty acids

All of the above