Question # 1

Setting of cement is an

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Exothermic reaction

Endothermic reaction

Neither exothermic nor endothermic

None

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

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Mercury

Lead

Nitrogen oxide

Sulphur oxide

Ammonia gas used directly as a fertilizer is injected into the soil at a depth of about

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Two inches

Three inches

Five inches

Six inches

Cannizzaro reaction is not given by

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Trimethyl acetaldehyde

Acetaldehyde

Benzaldehyde

Formaldehyde

Fertilizer are made by

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Nature only

Artificial methods only

Both artificial and natural methods

None of the above

The structure of XeF₆

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Distorted octahedral

Pyramidal

Tetrahedral

None of the above

Cyclone collector is used for minimizing

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Radioactive pollution

Air pollution

Noise pollution

Water pollution

Sulphure dioxide affects

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Cell wall

Plasmodesmata

All membrane systems

Nucleus

The last orbit of argon would have electrons

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8

18

2

6

At room temperature formaldehyde is

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Gas

Liquid

Solid

None of the above

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NAT I Engineering Chemistry MCQs With Answers

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