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Chemistry 10th Class English Medium Online Test MCQs With Answers

Question # 1

Acidic solutions have pH value.

Choose an answer

Less than 7

Greater than 7

equal to 7

None of these

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Question # 2

Which salt is used for the manufacture of detergents, pulp and paper?

Choose an answer

NaCl

Na₂CO₃

Na₂SiO₃

NaCl

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Question # 3

Which process is responsible for ascending of water in roots:

Choose an answer

evaporation

transpiration

condensation

capillary action

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Question # 4

Ethyne is oxidized by alkaline KMnO₄ then ....... hydroxyl group add to the triple bond.

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Two

Three

Four

Five

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Question # 5

For a reaction between PCL₃ and Cl₂ to form PCl₅ the units of Kc are:

Choose an answer

Mol dm^-3

Mol^-1 dm^-3

Mol^-1dm³

Mol dm³

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Question # 6

Ozone has a smell

Choose an answer

Bitter

Rotten egg

Sweat

None of them

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Question # 7

Which one of the following disease causes severe diarrhea and can be fatal:

Choose an answer

Jaundic

Dysentery

Cholera

Typhoid

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Question # 8

Mesophere extend forms 50 km to:

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50 km

12 km

60 km

85 km

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Question # 9

Which one of the following is a synthetic fibre?

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Cotton

Wool

nylon

silk

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Question # 10

In shoe polished, which chemical is used.

Choose an answer

Ethanol

Methanol

Carbon black

Formaldehyde

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Question # 11

Which one of the following is not the characteristics of monosaccharide?

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White crystalline solids

Soluble in water

Hydrolysable

Reducing is nature

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Question # 12

The rate of reverse reaction in the beginning.

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Slow

moderate

Very fast

Low

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Question # 13

The unit of molar concentration:

Choose an answer

mol. dm^-2

mol. dm^-1

mol. dm

mol. dm^-3

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