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

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.

3 / 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

1 and 3

1, 2 and 3

2 and 3

4 / 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 P and S are salt solutions

Both Q and R are salt solutions

Both P and R are neutral solutions.

Both Q and S are basic solutions

5 / 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 P and R

Only P

Only Q and R

6 / 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?

Blood → Milk of magnesia → Wine

Wine → Milk of magnesia → Blood

Milk of Magnesia → Blood → Wine

Wine → Blood → Milk of Magnesia

7 / 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 true but R is false

A is false but R is true

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

8 / 15

Also See: Mastering "The Proposal Class 10": Top Questions Demystified

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

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

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

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

9 / 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 2

1, 2, and 3

2 and 3

1 and 3

10 / 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 a neutral substance

P is an acid

P is not a salt

11 / 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?

Water which is neutral.

Dilute hydrochloric acid solution.

Calcium oxide which is basic.

Sodium chloride which is neutral.

12 / 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

Only 3

Only 1 and 2

Any of 1, 2, and 3

13 / 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 less than that of hydrochloric acid.

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

Acetic acid dissociates completely in an aqueous solution.

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.

2 only

2 and 4

1 and 3

4 only

15 / 15

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

Also See: Print Culture and the Modern World Class 10: Important Questions, Easy Answers

Blue vitriol

Gypsum

Washing soda

Baking soda

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The average score is 59%

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Pos.	Name	Score	Duration	Points
1	PK	100 %	58 seconds	15
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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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