Question

Assertion (A): Detergents are more effective in hard water than soap.

Reason (R): Detergents form soluble complexes with calcium and magnesium ions in hard water, preventing the formation of soap scum.

Options

• A is true, but R is false.

• A is false, but R is true.

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

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

Answer 1

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

Explanation:

Detergents work better in hard water because they form soluble compounds with calcium and magnesium ions instead of precipitating. This prevents the formation of sticky soap scum, allowing the detergent to lather freely and clean efficiently.