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{ Chemical Process }
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Chemical Engineering
// Chemical Process
582. __________ iron is the purest form of iron.
A. Cast
B. Wrought
C. Pig
D. High silicon
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583. Hydrogenation of edible vegetable oils
A. Is an exothermic reaction
B. Increases their melting point
C. Is done in presence of nickel catalyst
D. All of the above
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584. In an integrated steel plant, NH
3
present in coke oven gas is normally recovered as
A. (NH
4
)
2
SO
4
B. NH
4
Cl
C. (NH
4
)
2
NO
3
D. Liquid NH
3
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585. Alkylbenzene sulfonate (ABS) is a
A. Detergent
B. Rubber
C. Pesticide
D. Polyester
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586. Unsaturated oils compared to saturated oils have
A. Lower melting point & higher reactivity to oxygen
B. Higher melting point & higher reactivity to oxygen
C. Lower melting point & lower reactivity to oxygen
D. Higher melting point & lower reactivity to oxygen
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587. Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
A. Cutting
B. Fibrillation
C. Hydration
D. Strengthening
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588. Which of the following is a constituent of coffee?
A. Caffeine
B. Nicotine
C. Calgon
D. Lignin
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