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Chemical Engineering Basics

Chemical Engineering Basics
Milligram of KOH required to saponify 1 gm of oil is called its __________ number.

Precipitation
Emulsion
Acid
Saponification

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Chemical Engineering Basics
Milk is fat dispersed in water. It is an example of

Gel
Emulsion
Solution
Suspension

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Chemical Engineering Basics
For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be

90000 J
240000 J
60000 J
30000 J

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Chemical Engineering Basics
Air refrigeration cycle is used in the air crafts, because of

Its higher co-efficient of performance (COP)
Its high heat transfer rate
Low temperature encountered at high altitude
Its low unit weight per ton of refrigeration

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Chemical Engineering Basics
The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called

Ductility
Toughness
Impact strength
Resilience

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Chemical Engineering Basics
Castability of aluminium is increased by the addition of __________ in it.

Manganese
Silicon
Bismuth
Lead

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