Acids, Bases and Salts Practice Questions

Class 10 · Science · 3242 free MCQs with instant results and detailed explanations.

3242

Total

1007

Easy

1600

Medium

635

Hard

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Topics in Acids, Bases and Salts

Salts and their Properties 1122

pH Scale 1000

Properties of Acids and Bases 1120

Sample Questions from Acids, Bases and Salts

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Easy

What is the pH range of acidic solutions?

A. 0-7

B. 7-14

C. 14-20

D. 7

Show Answer & Explanation

Correct Answer: A

Acidic solutions have a pH less than 7, with 0 being the strongest acid.

Easy

Which of the following is a characteristic property of bases?

A. They taste sour

B. They change red litmus to blue

C. They are corrosive to metals

D. They produce hydrogen ions in solution

Show Answer & Explanation

Correct Answer: B

Bases turn red litmus paper blue, which is a classic test for their presence.

Easy

What is produced when an acid reacts with a metal?

A. Water

B. Salt and hydrogen gas

C. Oxygen gas

D. Carbon dioxide

Show Answer & Explanation

Correct Answer: B

Acids react with metals to form a salt and release hydrogen gas.

Medium

Which of the following statements is true regarding acids?

A. Acids have a sour taste.

B. Acids turn litmus paper blue.

C. Acids are slippery to touch.

D. Acids do not react with metals.

Show Answer & Explanation

Correct Answer: A

Acids typically have a sour taste, which is a characteristic property of acids. They turn blue litmus paper red, are not slippery, and they do react with certain metals.

Medium

What is the pH range of a strong acid?

A. 0 to 3

B. 4 to 6

C. 7

D. 8 to 10

Show Answer & Explanation

Correct Answer: A

Strong acids typically have a pH range from 0 to 3, indicating a high concentration of hydrogen ions.

Medium

Which of the following is NOT a property of bases?

A. They taste bitter.

B. They turn litmus red.

C. They feel slippery.

D. They can neutralize acids.

Show Answer & Explanation

Correct Answer: B

Bases turn litmus paper blue, not red. They are bitter in taste, feel slippery, and can neutralize acids.

Medium

Which of the following substances can act both as an acid and a base?

A. Water

B. Hydrochloric acid

C. Sodium hydroxide

D. Sodium chloride

Show Answer & Explanation

Correct Answer: A

Water can act as both an acid and a base depending on the reaction context, making it an amphoteric substance.

Hard

Which of the following acids is found in gastric juice?

A. Sulfuric acid

B. Hydrochloric acid

C. Nitric acid

D. Acetic acid

Show Answer & Explanation

Correct Answer: B

Hydrochloric acid is the main acid present in gastric juice, aiding in digestion.

Hard

What is the pH range of a strong acid?

A. 0 to 3

B. 4 to 6

C. 7 to 10

D. 10 to 14

Show Answer & Explanation

Correct Answer: A

Strong acids have a pH range from 0 to 3, indicating high acidity.

Q10

Hard

Which of the following statements about bases is incorrect?

A. Bases feel slippery to the touch.

B. Bases turn litmus paper red.

C. Bases can neutralize acids.

D. Bases produce hydroxide ions in solution.

Show Answer & Explanation

Correct Answer: B

Bases turn litmus paper blue, not red, which is characteristic of acids.

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Acids, Bases and Salts — Class 10 Science Practice Questions Online

This page contains 3242 practice MCQs for the chapter Acids, Bases and Salts in Class 10 Science. The questions are organized by difficulty — 1007 easy, 1600 medium, 635 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.