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

Question # 1

Which acid is used for food preservation?

Choose an answer

Hydrochloric acid

Benzoic acid

Sulphuric acid

Nitric acid.

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Question # 2

A conjugate acid is a specie formed by accepting a.

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Proton

Electron pair

Neutron

Electron

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Question # 3

Which one is Lewis Acid?

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BF₃

AICI₃

FeCl₃

All of these

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Question # 4

When acid reacts with sulphites and Bi sulphates which gas is evolved?

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CO₂

SO₂

NH₃

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Question # 5

Which one of the mineral acid.

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HCl

H₂SO₄

HNO₃

All of these

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Question # 6

A base is a substance which neutralizes an acid which of these substances is not a base?

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Aqueous ammonia

Sodium chloride

Sodium Hydroxide

Calcium Hydroxide

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Question # 7

__________ acid cause acidity of stomach.

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Oxalic acid

Hydrochloric acid

Sulphuric acid

Nitric Acid

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Question # 8

What is pOH of 0.01 M solution of HCl?

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Question # 9

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

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NaCl

Na₂CO₃

Na₂SiO₃

NaCl

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Question # 10

Dilute acid react with carbonates the produce product except _________

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Salt

Water

Carbon di oxide

Hydrogen gases

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Question # 11

When acids react with metals which gas is evolved?

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H₂

O₂

Cl₂

N₂

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Question # 12

Which acid is used for etching designs on copper plates?

Choose an answer

H₂SO₄

HNO₃

HCl

CH₃COOH

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Question # 13

_________ acid is used in lead storage batteries as electrolyte.

Choose an answer

CH₃COOH

HCl

HNO₃

H₂SO₄

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