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

Question # 1

Which one of the mineral acid.

Choose an answer

HCl

H₂SO₄

HNO₃

All of these

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Question # 2

Which of following is not conjugate base.

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S^-2

F^-1

Na⁺

SO₄

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Question # 3

Potassium Ferrocyanide is a:

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Normal salt

Mixed salt

Complex salt

Double salt

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Question # 4

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

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1.698

1.397

12.31

12.61

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Question # 5

Indicators are the

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Inorganic compounds

Organic compounds

Ionic compounds

Covalent compounds

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Question # 6

A substance which can behave as an acid as well as a base is called.

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Acid

Base

Amphoteric

Neutral

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Question # 7

Bronsted and Lowry presented their theories of acids and bases in

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1785

1787

1923

1925

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Question # 8

Soda lime is a mixture of..

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CaCl, + KOH

NaOH + CaO

NaOH + CaCl₂

Ca(OH)₂ + CaO

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Question # 9

A product of any Lewis acid base reaction is a single specie called.

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Salt

Water

Adduct

None of these

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Question # 10

Which is used for cleaning agent for domestic and commercial purpose?

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NaCl

Na₂CO₃

NaHCO₃

Na₂SiO₃

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Question # 11

Acid used for cleaning metals , tanning and in printing industries, is:

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H2SO4

HNO3

CH3COOH

HCI

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Question # 12

Which acid is used for etching designs on copper plates?

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H₂SO₄

HNO₃

HCl

CH₃COOH

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Question # 13

If a liquid has a pH of 7 then it must.

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Be a colourless and odourless liquid

Freeze at 0 ^oC and boil at 100 ^oC

Be natural

Be a solution containing water

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