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NAT I Engineering Chemistry MCQs With Answers

Question # 1

The principle constituent of pyrex glass is

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Question # 2

Natural fertilizer provides potassium in the form of K₂O (potash)

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1.5 kg

3 kg

4.5 kg

6.5 kg

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Question # 3

The last orbit of argon would have electrons

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Question # 4

Vital force theory was rejected by

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Berzelius

Kolbe

Wholer

Lavoiser

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Question # 5

Reaction of ethylamine with chloroform in alcoholic KOH producers

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CH₃OH

CH₃NC

C₂H₅NC

C₂H₅CN

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Question # 6

Calcium cyanamide on treatment with steam under pressure gives NH₃ and

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Calcium carbonate

Calcium hydroxide

Calcium oxide

Calcium bicarbonate

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Question # 7

Wholer prepared ures from

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Ammonia

NH₄CNO

NH₃

uric acid

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Question # 8

Bleaching action of bleaching powder is due to the liberation of

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O₂

OCI^-

CI₂

CI^-

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Question # 9

Addition of iron filling to CuSO₄solution caused precipitation of Cu awing to the

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Reduction of Cu²⁺

Oxidation of Cu²⁺

Reduction of Fe

Reduction of Fe³⁺

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Question # 10

Propyne on hydrolysis in presence of H₂SO₄ and HgSO₄ gives

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Acetaldehyde

Actone

Formaldehyde

None

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Question # 11

In which of the following elements +1 oxidation state is more stable than +3

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