Q. What are the common applications of the Zeolites, which remain in news frequently? 1. as water softeners 2. In cleaning radioactive wastes 3. for absorbing sulphur dioxide from waste gases 4. for catalytic cracking Select the correct option from codes given below:

• A. 1 & 2 Only
• B. 2, 3 & 4 Only
• C. 1, 2 & 3 Only
• D. 1, 2, 3 & 4

Correct Answer: D