Question

Zeolite used to soften hardness of water is, hydrated

• A. Potassium aluminium borate
• B. Sodium aluminium silicate
• C. Calcium aluminium silicate
• D. Zinc aluminium borate

Answer 1

Answer: (B)

Sodium aluminium silicate

Answer 2

Zeolites are complex inorganic salts like hydrated sodium aluminium silicates, $Na _{2} Al _{2} Si _{2} O _{8}$, which are used to remove the hardness of water.