Question # 1

Hydrogen atoms preset in pentane are.

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10

12

14

16

Silicon occurs in the form of

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Silica

Silicates

both a and b

None of these

Coal tar contains compounds

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Benzene

Phenol

Toluene

All

Main component of natural gas is

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Methane

Propane

Butane

Propene

Coal is the mixture of

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Hydrogen

Methane

Carbon monoxide

All

The example of heterocyclic compound is.

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Benzene

Hexane

Cyclohexane

Pyridine

General formula of Alkane is.

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C₁₀H_2n-2

C₆H₂₆

C₁₁H_2n-2

C_nH_2n-2

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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C_nH_2n+2

C_nH_2n-2

C_nH_2n+1

C_nH_2n

The % age of carbon in peat is :

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60%

70%

80%

90%

Molecular formula of butane is

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C₄H₈

C₄H₁₀

C₄H₁₂

C₄H₆

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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10th Class Chemistry Chapter 11 Organic Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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