Acids, Bases And Salts Class 10 MCQ Quiz – Test Your Knowledge!

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Are you ready to test your understanding of Acids, Bases, and Salts? This Chapter 2 Science MCQ Quiz is designed as per the CBSE syllabus and will help you revise key concepts quickly. Let's see how many you get right!

Class 10 Science Chapter 2 Acids, Bases and Salts MCQs

Chapter 2: Acids, Bases and Salts

1 / 15

The yellow color of turmeric changes to red on addition of soap solution. When substance P is added to turmeric, there is no change in color.

Which of the following is definitely true about substance P?

P is not a salt

P is a neutral substance

P is not a base

P is an acid

2 / 15

Which of the following salts does not contain water of crystallization?

Baking soda

Blue vitriol

Washing soda

Gypsum

3 / 15

Some activities cause the soil and water resources in that area to become acidic. Once these activities are stopped, the land has to be treated to enable plants to grow once again.

Which of the following should be added to the land to decrease the acidity permanently and allow plants to grow once again?

Calcium oxide which is basic.

Water which is neutral.

Dilute hydrochloric acid solution.

Sodium chloride which is neutral.

4 / 15

Assertion (A): Fresh milk in which baking soda is added, takes a longer time to set as curd.

Reason (R): Baking soda decreases the pH value of fresh milk to below 6.

Both A and R are true and R is not the correct explanation of the assertion.

A is false but R is true

A is true but R is false

Both A and R are true and R is the correct explanation of the assertion.

5 / 15

A solution of a base with pH 12.1 is given.

Which of the following can be done to decrease its pH?

1. Add distilled water to it.

1. Add a solution of a different base with pH 8.7

1. Add a few drops of an acid with an unknown pH

Only 1 and 2

Any of 1, 2, and 3

Only 1

Only 3

6 / 15

Identify the basic salt from the following salts:

Na2CO3

NH4Cl

NaNO3

KCl

7 / 15

Which of the following are correctly matched?

1. Acid + Salt	Metal + Hydrogen
2. Acid + Metal Carbonate	Salt + Carbon Dioxide + Water
3. Metal Oxide + Acid	Salt + Water

1 and 2

2 and 3

1, 2 and 3

1 and 3

8 / 15

The graph given below depicts a neutralization reaction (acid + base → salt + water). The pH of a solution changes as we add an excess of acid to an alkali.

graph depicting a neutralization reaction

Which letter denotes the area of the graph where both acid and salt are present?

9 / 15

Meena rubbed the yellow-colored turmeric stain on his son’s shirt with soap. She observed the color of the stain became:

White

Reddish brown

Remained yellow

Pink

10 / 15

Assertion (A): While dissolving an acid in the water, the water must always be added slowly to the acid with constant stirring.

Reason (R): Dissolving an acid in water is a highly exothermic reaction.

Also See: Money and Credit Class 10: Important Questions & Answers

A is false but R is true

Both A and R are true and R is not the correct explanation of the assertion.

A is true but R is false

Both A and R are true and R is the correct explanation of the assertion.

11 / 15

In an attempt to demonstrate electrical conductivity through an electrolyte, the following apparatus was set up.

Base solution in water conducts electricity

Which among the following statement(s) is/are correct?

1. The bulb will not glow because the electrolyte is not acidic.

1. The bulb will glow because NaOH is a strong base and furnishes ions for conduction.

1. The bulb will not glow because the circuit is incomplete.

1. The bulb will not glow because it depends upon the type of electrolytic solution.

2 only

1 and 3

2 and 4

4 only

12 / 15

Which of the following are properties of acids?

1. They are bitter in taste.

1. They react with metals to produce hydrogen gas.

1. They are easily soluble in water.

All – P, Q, and R

Only Q and R

Only P and R

Only P

13 / 15

Which of the following are correctly matched?

1. Plants and animals	pH range is 7.0 to 7.8
2. Acid rain	pH is 7.6
3. Tooth Decay	pH less than 5.5

2 and 3

1 and 2

1 and 3

1, 2, and 3

14 / 15

Match the chemical substances given in column A with their appropriate application given in column B.

Column A	Column B
A. Bleaching powder	i. Preparation of glass
B. Baking Soda	ii. Production of H₂ and Cl₂
C. Washing Soda	iii. Decolorization
D. Sodium Chloride	iv. Antacid

A-ii, B-iv, C-i, D-iii

A-ii, B-i, C-iv, D-iii

A-iii, B-ii, C-iv, D-i

A-iii, B-iv, C-i, D-ii

15 / 15

Which of the following reactions is a neutralization reaction?

HNO3 + NaOH → NaNO3 + H2O

MgO + H2O → Mg(OH)2

Fe + 2HCl → FeCl2 + H2

4Na + O2 → 2Na2O

Your score is

The average score is 58%

Complete all questions and check your leaderboard rank!

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Also See: Carbon and Its Compounds Class 10 Science MCQ Quiz – Test Your Knowledge

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Acids, Bases and Salts Class 10 MCQ Quiz – Test Your Knowledge!

Class 10 Science Chapter 2 Acids, Bases and Salts MCQs

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