Question # 1

____________ is synthetic fiber.

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Cotton

Woal

Nylon

Silk

Coal having 90% carbon contents is called.

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Peat

Lignite

anthracite

bituminous

Petroleum is refined by:

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destructive distillation

fractional distillation

simple distillation

dry distillation

General formula of alcohols is:

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RCHO

ROH

O= R - C -OH

O = R - C- R

Main component of Natrual gas.

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CH₃

CH₄

C₂H₆

C₂H₂

Which one of the following is a synthetic fibre?

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Cotton

Wool

nylon

silk

The general formula of alkane is

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C_nH_2n+2

C_nH_2n-2

C_nH_2n

C_nH_2n+1

Which of the following is the hardest coal?

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Pear

Lignite

Bituminous

Anthracite

General formula of alkyl radical is

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C_nH_2n+2

C_nH_2n-2

C_nH_2n+1

C_nH_2n

Molecular formula of butane is

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C₄H₈

C₄H₁₀

C₄H₁₂

C₄H₆

Percentage of carbon in peat is.

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50%

60%

70%

80%

Organic compounds contain:

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ionic bond

Covalent bond

Metallic bond

Co-ordinate covalent

General formula of Alkyl radical is..

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C₆H_2n-2

C_nH_2n+2

C₁₁H_2n-1

C_nH_2n-2

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