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

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.

A is true but R is false

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

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

A is false but R is true

2 / 15

Payal has to arrange the following in decreasing order of hydroxide ion concentration.

Wine (pH 4.0), Milk of magnesia (pH 10.5), Blood (pH 7.4)

Which of the following arrangements is correct?

Wine → Blood → Milk of Magnesia

Milk of Magnesia → Blood → Wine

Wine → Milk of magnesia → Blood

Blood → Milk of magnesia → Wine

3 / 15

Identify the basic salt from the following salts:

KCl

NH4Cl

NaNO3

Na2CO3

4 / 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 an acid

P is not a base

P is a neutral substance

P is not a salt

5 / 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

6 / 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 3

1 and 2

1, 2 and 3

2 and 3

7 / 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

8 / 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, 2, and 3

1 and 3

9 / 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?

Also See: Chemical Reactions and Equations Class 10 Important Questions and Answers

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

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

Acetic acid is a strong acid.

Acetic acid dissociates completely in an aqueous solution.

10 / 15

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

Pink

White

Remained yellow

Reddish brown

11 / 15

Which of the following reactions is a neutralization reaction?

4Na + O2 → 2Na2O

HNO3 + NaOH → NaNO3 + H2O

Fe + 2HCl → FeCl2 + H2

MgO + H2O → Mg(OH)2

12 / 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.

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.

13 / 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?

14 / 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

Both A and B

Turn red litmus blue.

It will have no effect on the litmus paper.

15 / 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 Q and R are salt solutions

Both P and S are salt solutions

Your score is

The average score is 58%

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: Master Carbon & Its Compounds Class 10 Notes That Actually Work!

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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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