Statement-l: PH3 will have low boiling point than NH3. Statement-II: There are strong van der Wall forces in NH3 and strong hydrogen-bonding in PH3.

Boiling point: N H 3 ( 2 3 9 . 7 ) > P H 3 ( 1 8 5 . 5 ) due to hydrogen bonding in NH3.

Statement-l: PH₃ will have low boiling point than NH₃.

Statement-II: There are strong van der Wall forces in NH₃ and strong hydrogen-bonding in PH₃.

Option 1 - Statement-I and statement-Il both are true

Option 2 - Statement-I and statement-II both are false

Option 3 - Statement-l is true but statement-Il is false

Option 4 - Statement-I is false but statement-II is true

1 Views|Posted 4 months ago

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Alok Kumar Singh | Contributor-Level 10

4 months ago

Correct Option - 3

Detailed Solution:

Boiling point: $\overset{(239.7)}{N H_{3}} > \overset{(185.5)}{P H_{3}}$ due to hydrogen bonding in NH₃.

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