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

If 10 mL of H₂SO₄ is mixed with 10 mL of Mg(OH)₂ of the same concentration, the resultant solution will give the following colour with universal indicator:

Red

Yellow

Green

Blue

3 / 15

Identify the true representation of reaction occurring during chloralkali process.

2NaCl(l) + 2H₂O(l) → 2NaOH(l) + Cl₂(g) + H₂(g)

2NaCl(l) + 2H₂O(aq) → 2NaOH(aq) + Cl₂(g) + H₂(aq)

2NaCl(aq) + 2H₂O(l) → 2NaOH(aq) + Cl₂(aq) + H₂(aq)

2NaCl(aq) + 2H₂O(l) → 2NaOH(aq) + Cl₂(g) + H₂(g)

4 / 15

Which among the following is not a base?

NaOH

KOH

NH₄OH

C₂H₅OH

5 / 15

What will take place when the solution of an acid is blend with the solution of a base in a test tube?

The temperature of the solution increases

The temperature of the solution decreases

The temperature of the solution remains the same

Salt formation takes place

1 and 4

1

1 and 3

2 and 4

6 / 15

Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the following declaration are true about the gas evolved?

It turns lime water milky

It extinguishes a burning splinter.

It dissolves in a solution of sodium hydroxide.

It has a pungent odour

1,2 and 3

1 and 2

1 and 4

2, 3 and 4

7 / 15

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

The higher the pH, the stronger the acid

The higher the pH, the weaker the acid

The lower the pH, the stronger the base

The lower the pH, the weaker the base

2 and 4

1 and 3

2 and 3

1 and 4

8 / 15

The chemical formula for methonic acid

H2COH

HOOCH

HCOOH

None

9 / 15

Antacid are

Acidic in nature

Basic in nature

both

none

10 / 15

What types of ions are formed when a base is dissolved in water ?

H+ ions are formed

OH- ions

allof these

11 / 15

The pH of pure water is

4

5

6

7

12 / 15

The source of citric acid is

lemon

vinegar

orange

none

13 / 15

The chemical used in manufacture of soaps

Na₂Co₃

NaOH

NACo₄

Na₂OH

14 / 15

How many water molecules are present in plaster of paris

one third

half

4

2

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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