Question

Assertion (A): An acidic solution reacts with crushed egg shells to evolve a gas which turns lime water milky.

Reason (R): A solution of hydrogen chloride gas in water conducts electricity.

Options

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

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

• A is true but R is false.

• A is false but R is true.

Answer 1

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

Explanation:

The assertion is true because acidic solutions react with the calcium carbonate in eggshells, releasing carbon dioxide gas that turns lime water milky. This is also true because hydrogen chloride dissociates into ions in water, allowing it to conduct electricity. However, electrical conductivity does not explain the gas-evolving reaction with eggshells.