Statement: Zeolites are water softner as well as catalyst.

Explanation: The catalytic action of zeolites is based upon their shape selectivity.

Statement is correct but explanation is wrong.

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Statement is wrong but explanation is correct.

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Both Statement and explanation are correct and explanation is correct explanation of Statement.

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Both Statement and explanation are correct but explanation is not correct explanation of Statement

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Solution

The correct option is C Both Statement and explanation are correct but explanation is not correct explanation of Statement
Zeolites are water softener as well as the catalyst.

They are natural ion exchangers. Permutit water softeners are sodium zeolites.

They take up calcium ions from hard water and release sodium ions in water.
Thus hard water gets softened.

The catalytic action of zeolites is based upon their shape selectivity.

They act as molecular sieves by trapping small molecules (such as water, ammonia, carbon dioxide) in their interstices reversibly.

Both Statement and explanation are correct but the explanation is not a correct explanation of Statement

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Statement: Zeolites are water softner as well as catalyst.Explanation: The catalytic action of zeolites is based upon their shape selectivity.

Statement: Zeolites are water softner as well as catalyst.

Explanation: The catalytic action of zeolites is based upon their shape selectivity.