Science : Ch 02 – Acids Bases and Salts

This test is designed based on NCERT Syllabus for Class 10 Topics : Acids Bases and Salts

Each time random 15 questions will be displaced
So retake the quiz till you have mastered all the questions

1 / 15

Which of the following gives the exact increasing order of acid strength?

Water < acetic acid < hydrochloric acid

Water < hydrochloric acid < acetic acid

Acetic acid < water < hydrochloric acid

Hydrochloric acid < water < acetic acid

2 / 15

Which of the consequent will turn phenolphthalein pink?

NaOH(aq)

HCl(aq)

CH₃COOH(aq)

H₂O

3 / 15

Which of the following declaration is true for acids?

Bitter and change red litmus to blue

Sour and change red litmus to blue.

Sour and change blue litmus to red

Bitter and change blue litmus to red.

4 / 15

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

Strong acid and strong base

Weak acid and weak base

Strong acid and weak base

Weak acid and strong base

5 / 15

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

Higher the pH, stronger the acid

Higher the pH, weaker the acid

Higher the pH, stronger the base

Lower the pH, weaker the base

1 and 3

2 and 3

2 and 4

1 and 4

6 / 15

An old person complained of acute pain in stomach. Doctor gave small antacid tablet and he got immediate relief. What actually happened?

anatacids added excess acid in his stomach

anatacids neutralized the excess acid in his stomach

anatacids removed the excess acid in his stomach

none

7 / 15

Antacid are

Acidic in nature

Basic in nature

both

none

8 / 15

The source of Acetic acid is

lime

vinegar

orange

none

9 / 15

The chemical used in manufacture of soaps

Na₂Co₃

NaOH

NACo₄

Na₂OH

10 / 15

Hydrogen is used in manufacture

of ammonia for fertilizers and as Rocket fuel.

soaps

dyes

none

11 / 15

How many water molecules are present in plaster of paris

one third

half

4

2

12 / 15

On strong heating, blue coloured copper sulphate crystals turns

purple

red

white

blue

13 / 15

Common name calcium sulphate hemihydrate

lime stone

Plaster of paris

white stone

none

14 / 15

Which of the following statements is true for acids?

Bitter and change red litmus to blue

Sour and change red litmus to blue

Sour and change blue litmus to red.

Bitter and change blue litmus red

15 / 15

The other name of methanoic acid is

Formic acid

sulpuric acid

Hydrochloric acid

none

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Science : Ch 02 – Acids Bases and Salts

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