Question

Sodium alkyl benzene sulphonate is used as

• A. soap
• B. fertilizer
• C. detergent
• D. pesticide

Hint:

Detergents are better than soaps in hard water because they do not form scum with Ca\(^{2+}\) and Mg\(^{2+}\) ions.

Answer 1

The Correct Option is C

Step 1: Underlying Concept:
Sodium alkyl benzene sulphonate is a synthetic surfactant.
Step 2: Explanation:
It is an anionic detergent, widely used in laundry and cleaning products because it works well even in hard water.
Step 3: Conclusion:
Detergent