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Given below are two statements : one is labeled as Assertion (A) and the other is labelled as Reason (R) . Assertion (A) : PH 3 has lower boiling point than NH 3 . Reason (R) : In liquid state NH 3 molecules are associated through van der Waal’s forces, but PH 3 molecules are associated through hydrogen bonding. In the light of above statements, choose the most appropriate answer from the options given below.

1. Both (A) and (R) are correct and (R) is the correct explanation of (A).
2. Both (A) and (R) are correct but (R) is not the correct explanation of (A).
3. (A) is correct but (R) is not correct.
4. (A) is not correct but (R) is correct.

Correct answer: (A) is correct but (R) is not correct.

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