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9th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

Reduction means

Choose an answer

Removal of H2

Removal of electrons

Gain of electrons

Gain of O2

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Question # 2

Atoms reacts with each other because:

Choose an answer

They are attracted to each other

they are short of electrons

they want to attain stability

they want to disperse

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Question # 3

Gain of electrons in a reaction is called ____________reaction.

Choose an answer

Oxidation

Reduction

Both

Nil

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Question # 4

Which one of the following does not affect the boiling point?

Choose an answer

intermolecular forces

external pressure

nature of liquid

initial temperature of liquid

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Question # 5

When an electronegative element combines electropositive element the type of bonding is

Choose an answer

covalent

ionic

polar covalent

coordinate covalent

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Question # 6

Diamonds exists in ____________ form.

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Cubic

Linear

Circular

Nil

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Question # 7

In ionic bond complete ________________ of electrons occurs.

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Paring

Sharing

Transfer

None

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Question # 8

A heterogeneous mixture of different substance are called:

Choose an answer

Solution

Suspension

Colloids

Nil

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Question # 9

The third abundant as found in the earth' crust is:

Choose an answer

Carbon monoxide

Oxygen

Nitrogen

Argon

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Question # 10

Films are coated by special chemical known as ____________ detectors.

Choose an answer

Photographic

Image

Nil

Both

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Question # 11

All ionic compound are ________________ at room temperature.

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Liquid

Solids

Gas

Plasma

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Question # 12

Every system in the universe tends to lower its energy to attain ________________

Choose an answer

Freedom

Flow

Stability

Nil

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Question # 13

Atoms as a whole is _________

Choose an answer

Neutral

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