Question # 1

Human body uses carbohydrates in the form of

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Glucose

Maltose

Fructose

Galatose

Which one is a pentahydroxy ketone?

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sucrose

glucose

fructose

lactose

According to Lewis concept a base is a substance which can donate.

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Proton

Electron pair

Neutron

Electron

Which compound do not produce in the halogenation of methane.

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Chloroform

Carbon tetrachloride

Carbon black

Chloromethane

The strong heating of coal in retoris in the absence of air is called.

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Fractional distillation

Sublimation

Roasting

Destructive distillation

In the bacterial decay, the compound of which element are emitted.

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Sulphur

Carbon

Nitrogen

All of them

Swimming pools are cleaned by the process.

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Chlorination

Hydrogenations

Saponification

None of them

Olefins is a Latin word meaning:

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inert

less reactive

oil forming

most reactive

A base is a substance which neutralizes and acid. Which of these substances is not a base?

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aqueous ammonia

Sodium chloride

Sodium carbonate

Calcium oxide

Ethylene is present is natural gas sometimes to the extent of .

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10%

20%

30%

40%

A strange bitter smell noticed near photocopiers is of:

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SO2

H2S

O2

O3

Which chemical is called king of chemicals?

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KNO₃

H₂SO₄

HCl

NHO₃

Reaction which have comparable amount of reactants and products at equilibrium state have.

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Very small Kc value

Very large Kc value

Moderate Kc value

None of these

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