NEET2024Chemistry-Group 16 Hydrides

NEET 2024 Chemistry Boiling Point Trends Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 12

Given below are two statements:

Statement I: The boiling point of hydrides of Group 16 elements follow the order H₂O > H₂Te > H₂Se > H₂S.

Statement II: On the basis of molecular mass, H₂O is expected to have lower boiling point than the other members of the group but due to the presence of extensive H⁻bonding in H₂O, it has higher boiling point. In the light of the above statements,

choose the correct answer from the options given below:

A

Statement I is true but Statement II is false.

B

Statement I is false but Statement II is true.

C

Both Statement I and Statement II are true.

D

Both Statement I and Statement II are false.

Correct Answer

Option C

Detailed Explanation

H₂O has a higher boiling point due to hydrogen bonding, despite its lower molecular mass compared to other Group 16 hydrides.

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