Statement-I: Temporary hardness of water is due to the presence of bicarbonates of Ca²⁺ / Mg²⁺.

Statement-II: Permanent hardness of water is due to the presence of chlorides/sulphates of Ca²⁺ / Mg²⁺.

• A

  Both statement-I and statement-II are correct

• B

  Statement-I is correct and statement-II is incorrect

• C

  Statement-I is incorrect and statement-II is correct

• D

  Both statement-I and statement-II are incorrect