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10th Class Chemistry Chapter 10 Acids, Bases and Salts English Medium KPK Boards Online Mcqs 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

The colour of litmus paper in strong acidic solution.

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Red

Blue

Yellow

Colourless

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Question # 3

All acids turn blue litmus.

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Red

Blue

Pinck

White

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Question # 4

Binary compounds of oxygen such as CO2 and SO2 were names as acids by;

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Jabir Bin Hayan

Lavoisier

Al- Jahiz

Sir Humphrey Davy

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Question # 5

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 # 6

According to Bronsted and Lowry concept an acid is a substance that can donate.

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Proton

Electron pair

Neutron

Electron

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Question # 7

conjugate base of HCl is:

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HCl^-

NH₃

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Question # 8

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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Question # 9

Which one Ion is not present in salt.

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Metallic cation

Anion of Base

Anion of acid

None metallic anion

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Question # 10

According to Arrhenius concept acid is a substance which dissociates in aqueous solution to give.

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Hydrogen ions

Hydroxide ions

Both a and b

None of these

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Question # 11

Which one gas is liberated when alkalies react with ammonium salts?

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O₂

CO₂

H₂

NH3

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Question # 12

The bond in the product of lewis acid base reaction.

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Ionic

Covalent

Metallic

Coordinate covalent

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Question # 13

Arrhenius put forward acid base concept in.

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1878

1786

1787

1790

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