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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): PH_3 has lower boiling point…

JEE Main 2024 — Chemistry Inorganic Chemistry

2024mcqeasy

Given below are two statements: one is labelled as Assertion (A)(A)(A) and the other is labelled as Reason (R).(R).(R).

Assertion (A):(A):(A): PH3{\mathrm{PH}}_{3}PH3​ has lower boiling point than NH3.{\mathrm{NH}}_{3}.NH3​.

Reason (R):(R):(R): In liquid state NH3{\mathrm{NH}}_{3}NH3​ molecules are associated through Vander Waal's forces, but PH3{\mathrm{PH}}_{3}PH3​ molecules are associated through hydrogen bonding.

In the light of the above statements, choose the most appropriate answer from the options given below:

Official previous-year question

Held on 1 Feb 2024 · Verified 6 Jul 2026.

Options

  1. A

    Both (A)(A)(A) and (R)(R)(R) are correct and (R)(R)(R) is not the correct explanation of (A)(A)(A)

  2. B

    (A)(A)(A) is not correct but (R)(R)(R) is correct

  3. C

    Both (A)(A)(A) and (R)(R)(R) are correct but (R)(R)(R) is the correct explanation of (A)(A)(A)

  4. D

    (A)(A)(A) is correct but (R)(R)(R) is not correct

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