Question # 1

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

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Carbonization

Catenation

Hydrogenation

Cracking

Pitch is black residue of.

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Coke

Coal tar

Coal

Coal gas

Formula of acetaldehyde is:

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The coal in which the percentage of carbon is 60%

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Peat

Lignite

Bituminous

Anthracit

Molecular formula of butane is

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C₄H₈

C₄H₁₀

C₄H₁₂

C₄H₆

Natural gas contains.

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Methane

Ethane

Propane

All

The 1st organic compound prepared in laboratory.

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Urea

NaCl

Thiourea

Pyridine

Which one contains double covalent bound?

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Pentane

Ethylene

Acetylene

All

Chemical formula for urea is:

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NH4CNO

NH4CH

NH2CONH2

NH4CI

General formula of Alkyl radical is..

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C₆H_2n-2

C_nH_2n+2

C₁₁H_2n-1

C_nH_2n-2

Silicon occurs in the form of

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Silica

Silicates

both a and b

None of these

Which one of the following compounds is an aldehyde?

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CH₃-CH₂-OH

CH₃-COOH

CH₃CHO

CH₃COCH₃

Carbonization process is the conversion of

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Coal into coal gas

Coal into wood

Wood into coal

Wood into coal tar

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