Question # 1

____________ is synthetic fiber.

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Cotton

Woal

Nylon

Silk

Percentage of methane present in natural gas is.

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75%

80%

85%

90%

Coal having 90% carbon contents is called.

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Peat

Lignite

anthracite

bituminous

Which one of the followoing is the Hardest coal.

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Peat

Lignite

Bituminous

Anthracite

What one of the following does not contain protein?

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Pulses

Potatoes

Beans

Eggs

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

Natural gas contains.

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Methane

Ethane

Propane

All

General formula of Alkynes is.

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C₆H_2n-2

C_nH_2n+2

C₁₁H_2n-2

C_nH_2n-2

Wood contain the amount of carbon.

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70%

80%

60%

40%

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

The formula which represents the actual number of atoms in one molecule of organic compound is called.

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Molecular formula

Structural formula

Condensed formula

Dot and cross formula

The functional group -COOH is found in.

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Aldehydes

Esters

Carboxylic acids

alcohols

Organic compounds contain:

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ionic bond

Covalent bond

Metallic bond

Co-ordinate covalent

In which of the following groups , oxygen is attached on both sides with carbon atoms.

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Ketone group

Ether group

Aldehyde group

Easter group

Which is the main component of natrual gas.

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Methane

Ethane

Propane

Charcoal

Coal gas is mixture of

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CO and CH₄

CO . CH₄. CO₂

CO, CH₄, H₂

CO, H₂ and CO₂

Pitch is black residue of

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Coke

Coal-tar

Coal

Coal gas

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

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