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Quiz on Acids, Bases, and Salts

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

What is Salt?

a)

None

b)

Acid + Base

c)

Base – Acid

d)

Acid – Base

2.

What happens when a solution of an acid is mixed with a solution of a base in a test tube?

a)

Temperature of the solution decreases

b)

None

c)

Temperature of the solution increases

d)

Temperature of the solution remains the same

3.

Which of the following is the strongest hydracid known?

a)

HNO3

b)

HCl

c)

HClO4

d)

HCN

4.

Water in case of HCl acts as a/an ___________, in case of ammonia acts as a/an ________

a)

base, base

b)

acid, acid

c)

base, acid

d)

acid, base

5.

Which of the following is not a Lewis acid?

a)

hydroxide ion

b)

aluminium chloride

c)

sodium ion

d)

sulphur tetrafluoride

6.

Which one of the following salts does not contain water of crystallisation?

a)

Gypsum

b)

Washing soda

c)

Baking soda

d)

Blue vitriol

7.

In terms of acidic strength, which one of the following is in the correct increasing order?

a)

Water < Acetic acid < Hydrochloric acid

b)

Hydrochloric acid < Water < Acetic acid

c)

Water < Hydrochloric acid < Acetic acid

d)

Acetic acid < Water < Hydrochloric acid

8.

What is formed when zinc reacts with sodium hydroxide?

a)

Sodium zinc-oxide and hydrogen gas

b)

Sodium zincate and hydrogen gas

c)

Zinc hydroxide and sodium

d)

Sodium zincate and water

9.

Tomato is a natural source of which acid?

a)

Acetic acid

b)

Citric acid

c)

Tartaric acid

d)

Oxalic acid

10.

Brine is an

a)

aqueous solution of sodium chloride

b)

aqueous solution of sodium carbonate

c)

aqueous solution of sodium bicarbonate

d)

aqueous solution of sodium hydroxide

11.

At what temperature is gypsum heated to form Plaster of Paris?

a)

90°C

b)

120°C

c)

100°C

d)

110°C

12.

Sodium carbonate is a basic salt because it is a salt of a

a)

strong acid and weak base

b)

weak acid and weak base

c)

weak acid and strong base

d)

strong acid and strong base

13.

Which of the following statements is correct about an aqueous solution of an acid and of a base?

a)

Lower the pH, weaker the base

b)

Lower the pH, stronger the base

c)

Higher the pH, weaker the acid

d)

Higher the pH, stronger the acid

14.

Tooth enamel is made up of

a)

calcium carbonate

b)

calcium phosphate

c)

calcium oxide

d)

potassium