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 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?

2 / 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?

Sodium chloride which is neutral.

Dilute hydrochloric acid solution.

Calcium oxide which is basic.

Water which is neutral.

3 / 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

1 and 3

2 and 3

1, 2 and 3

4 / 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

1 and 3

1 and 2

2 and 3

1, 2, and 3

5 / 15

In a very polluted city, water from the first rain in the monsoon season is collected in a beaker. Which of the following changes will it have on a litmus paper?

Turn blue litmus red

It will have no effect on the litmus paper.

Both A and B

Turn red litmus blue.

6 / 15

Identify the basic salt from the following salts:

NH4Cl

KCl

Na2CO3

NaNO3

7 / 15

Anita added a drop each of diluted acetic acid and diluted hydrochloric acid on pH paper and compared the colors. Which of the following is the correct conclusion?

Acetic acid is a strong acid.

pH of acetic acid is more than that of hydrochloric acid.

Acetic acid dissociates completely in an aqueous solution.

pH of acetic acid is less than that of hydrochloric acid.

8 / 15

Which of the following are correctly matched?

1. Common salt	Formed by sodium hydroxide and hydrochloric acid
2. Brine	The aqueous solution of Sodium chloride
3. Chlor-alkali process	Formation of Sodium chloride

1 and 2

2 and 3

1, 2 and 3

1 and 3

9 / 15

Which of the following reactions is a neutralization reaction?

Fe + 2HCl → FeCl2 + H2

4Na + O2 → 2Na2O

MgO + H2O → Mg(OH)2

HNO3 + NaOH → NaNO3 + H2O

10 / 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

Also See: CBSE Class 10 Social Science (SST) Answer Key 2025 – Download PDF & Exam Analysis

Only 3

Any of 1, 2, and 3

Only 1 and 2

Only 1

11 / 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 base

P is not a salt

P is a neutral substance

P is an acid

12 / 15

Anand took four colorless solutions P, Q, R, and S, and performed the following tests.

	Solution P	Solution Q	Solution R	Solution S
With Methyl Orange	No change in color	Turns red	No change in color	No change in color
With Phenolphthalein	No change in color	No change in color	No change in color	Turns pink
With Red litmus	No change in color	No change in color	No change in color	Turns litmus blue
With Blue litmus	No change in color	Turns litmus red	No change in color	No change in color

What is the definite conclusion that Anand can reach?

Both Q and S are basic solutions

Both P and R are neutral solutions.

Both P and S are salt solutions

Both Q and R are salt solutions

13 / 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.

Only P and R

Only P

Only Q and R

All – P, Q, and R

14 / 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.

4 only

2 and 4

1 and 3

2 only

15 / 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 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 not the correct explanation of the assertion.

Your score is

The average score is 59%

Complete all questions and check your leaderboard rank!

Pos.	Name	Score	Duration	Points
1	Kc	100 %	47 seconds	15
2	PK	100 %	58 seconds	15
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Also See: Last One Month Strategy for CBSE Class 10 2026 Board Exam

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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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Class 10 Science Chapter 2 Acids, Bases and Salts MCQs

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