Properties of Acids and Bases Quiz - CBSE Class 7 Science

Free practice quiz: Properties of Acids and Bases (CBSE Class 7 Science). 19 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 7 Science practice quiz has 19 multiple-choice questions on Properties of Acids and Bases, and 19 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What do acids generally taste like?

   1. Sweet
   2. Sour
   3. Salty
   4. Bitter
   Show answer

   Answer: B. Sour

   Acids generally have a sour taste, which is one of their common sensory properties.

2. Which of the following substances is a base?

   1. Vinegar
   2. Orange juice
   3. Baking soda
   4. Milk
   Show answer

   Answer: C. Baking soda

   Baking soda is a base known chemically as sodium bicarbonate; it reacts with acids to produce carbon dioxide.

3. Which ion is commonly associated with bases in solution?

   1. Na+ ion
   2. Cl- ion
   3. OH- ion
   4. CO3^2- ion
   Show answer

   Answer: C. OH- ion

   Bases are characterized by the presence of hydroxide ions (OH-) in solution.

4. Which gas is typically evolved when acids react with carbonates?

   1. Hydrogen
   2. Oxygen
   3. Carbon dioxide
   4. Nitrogen
   Show answer

   Answer: C. Carbon dioxide

   When acids react with carbonates, carbon dioxide gas is typically evolved as a product of the reaction.

5. Which product is formed by reacting hydrochloric acid and sodium hydroxide?

   1. Sodium chloride and water
   2. Sodium sulfate and water
   3. Water only
   4. Hydrochloric acid
   Show answer

   Answer: A. Sodium chloride and water

   Hydrochloric acid reacts with sodium hydroxide to produce sodium chloride (table salt) and water, a typical neutralization reaction.

More questions in this quiz

Answers and explanations are in the full quiz.

1. What is the feel of a basic solution when touched?
2. Which of the following is a common household acid?
3. How do acids react with metals?
4. What is a common effect of bases on litmus paper?
5. What ion is characteristic of acids?
6. What is the product of neutralization between an acid and a base?
7. Which of the following substances is likely to have a pH greater than 7?
8. Why are bases used in antacids?
9. Which characteristic of acids can be harmful to metals?
10. Which of the following is a false statement about bases?
11. What happens to the pH value of a solution as the concentration of OH- ions increases?
12. Which term describes a substance that can act as both an acid and a base?
13. Phenolphthalein is used as an indicator. What color does it turn in basic solutions?
14. Which pH value would indicate the strongest acid?

More quizzes

• Neutralization Reaction▶ Play

Browse all Acids, Bases and Salts quizzes

More to play