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.

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 quizzes

• Neutralization Reaction

Browse all Acids, Bases and Salts quizzes