Question # 1

Formula of Methyl alcohol

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CH₅-OH

CH₃-CH₂-OH

All of them

None of these

Carbonization process is the conversion of

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Coal into coal gas

Coal into wood

Wood into coal

Wood into coal tar

The strone heating of coal in retorts in the absence of air is called.

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Fractional distillation

sublimation

Roasting

Destructive distillation

Conversion of dead plants into coal by the action of bacteria and heat is called.

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Carbonization

Catenation

Hydrogenation

Cracking

Wood contain the amount of carbon.

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70%

80%

60%

40%

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

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

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Fractional distillation

Sublimation

Roasting

Destructive distillation

Coal gas is mixture of

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CO and CH₄

CO . CH₄. CO₂

CO, CH₄, H₂

CO, H₂ and CO₂

____________ is synthetic fiber.

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Cotton

Woal

Nylon

Silk

Aromatic compounds are given this name because of;

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smell they have

slippery touch they have

bitter taste they have

sour taste they have

Which one contains triple covalent bond?

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Pentane

Ethylene

Acetylene

All

Which one is heterocyclic compound?

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Benzene

Cyclobutane

Thiophene

Nephthalene

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