Question # 1

What is the pOH of Ca(OH)2, 0.02 M Solution.

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1.698

1.397

12.31

12.61

The acid which is called king of chemicals.

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Sulphuric Acid

Nitric Acid

Hydrochloric acid

Acetic acid

Which gas is evolved when acids react with carbonates and bicarbonates?

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Carbon monoxide

Carbon dioxide

Hydrogen

Hydrogen chloride

A salt always

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Contain ions

Contains water of crystallization

Dissolves in water

Forms crystals which conduct electricity

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Which base is more corrosive?

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NH₄OH

NaOH

Ca(OH)₂

AL(OH)₂

Which acid is used for etching designs on copper plates?

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H₂SO₄

HNO₃

HCl

CH₃COOH

Soda lime is a mixture of..

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CaCl, + KOH

NaOH + CaO

NaOH + CaCl₂

Ca(OH)₂ + CaO

According to Bronsted and Lowry concept a base is a substance that can accept.

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Proton

Electron pair

Neutron

Electron

A salt is not composed of

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A metallic cation

Non -metallic anion

an anion of a base

An anion of an acid

The colour of litmus paper in strong acidic solution.

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Red

Blue

Yellow

Colourless

The reaction between an acid and a base produces.

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Salts and water

Salt and gas

Salt and an acid

Salt and an base

Acid occurring in sour milk

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Citric acid

Lactic acid

Bytyric acid

Malic acid

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

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