Question # 1

Coal is blackish complex mixture of compounds of

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Carbon

Hydrogen

oxygen

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Which one of the following does ot contain protein

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Pulses

Potatoes

Beans

eggs

Pitch is black residue of

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Coke

Coal-tar

Coal

Coal gas

Coal gas is mixture of

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CO and CH₄

CO . CH₄. CO₂

CO, CH₄, H₂

CO, H₂ and CO₂

The % age of carbon is bituminous is

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60

70

80

90

The branch of chemistry which deals with the study of hydrocarbons and their derivatives is known as.

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Organic chemistry

Inorganic chemistry

Biochemistry

Nuclear chemistry

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

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Carbonization

Destructive distillation

Fractional distillation

All

General formula of Alkane is.

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C₁₀H_2n-2

C₆H₂₆

C₁₁H_2n-2

C_nH_2n-2

Carbonization process is the conversion of

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Coal into coal gas

Coal into wood

Wood into coal

Wood into coal tar

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Number of discovered element till today are.

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140

118

90

16

Which one of the following does not contain starch

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Sugar cane

Maize

Barley

Potatoes

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Chemistry 10th Class English Medium Unit 11 Online Test MCQs With Answers

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