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

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

Any of 1, 2, and 3

Only 1 and 2

Only 3

Only 1

2 / 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.

Acetic acid dissociates completely in an aqueous solution.

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

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

3 / 15

The reaction between MnO₂ with HCl is depicted in the following diagram. It was observed that a gas with bleaching abilities was released.

The chemical reaction between MnO₂ and HCl is an example of:

Combination reaction

Redox reaction

Decomposition reaction

Displacement reaction

4 / 15

Which of the following reactions is a neutralization reaction?

HNO3 + NaOH → NaNO3 + H2O

4Na + O2 → 2Na2O

MgO + H2O → Mg(OH)2

Fe + 2HCl → FeCl2 + H2

5 / 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 not 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 the correct explanation of the assertion.

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

2 and 3

1 and 2

1 and 3

1, 2 and 3

7 / 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.

Turn red litmus blue.

Both A and B

8 / 15

Mild non-corrosive basic salt is

NaCl

NaHCO3

NaOH

Ca(OH)2

9 / 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

Wine → Milk of magnesia → Blood

Milk of Magnesia → Blood → Wine

Blood → Milk of magnesia → Wine

10 / 15

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

Also See: Stress-Free Science Prep: Download Class 10 Sample Paper Solutions!

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

A is false but R is true

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

A is true but R is false

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

11 / 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

2 and 3

1, 2, and 3

1 and 3

12 / 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, 2 and 3

1 and 2

2 and 3

1 and 3

13 / 15

Identify the basic salt from the following salts:

Na2CO3

NH4Cl

KCl

NaNO3

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

1 and 3

2 and 4

2 only

15 / 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

Only P and R

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
3	Name	100 %	59 seconds	15
4	sp	100 %	1 minutes 8 seconds	15
5	D	100 %	1 minutes 10 seconds	15
6	Mansi	100 %	1 minutes 11 seconds	15
7	m	100 %	1 minutes 29 seconds	15
8	Hi	100 %	1 minutes 45 seconds	15
9	MJ	100 %	1 minutes 45 seconds	15
10	Y	100 %	1 minutes 54 seconds	15
11	Bhavana	100 %	2 minutes 17 seconds	15
12	rr	100 %	3 minutes 36 seconds	15
13	xyz	100 %	3 minutes 45 seconds	15
14	aum	100 %	4 minutes 3 seconds	15
15	WHYYYYYY	93 %	55 seconds	14
16	Krishna	93 %	1 minutes	14
17	Mansi	93 %	1 minutes 40 seconds	14
18	Op	93 %	1 minutes 54 seconds	14
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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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