Given below are two statements: Statement I: The boiling points of the following hydrides of group 16…

Given below are two statements:

Statement I: The boiling points of the following hydrides of group 16 elements increases in the order - H2O<H2S<H2Se<H2Te.

Statement II: The boiling points of these hydrides increase with increase in molar mass.

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

  1. Both Statement I and Statement II are incorrect
  2. Statement I is correct but Statement II is incorrect
  3. Statement I is incorrect but Statement II is correct
  4. Both Statement I and Statement II are correct

Solution

Boiling point increases with molar mass of the compound, and it is also effected by hydrogen bonding.

By considering both the factors, the correct order of boiling points of 16th group hydrides is,

H2S<H2Se<H2Te<H2O

H2O have the highest boiling point because of hydrogen bonding.

Asked in: NEET 2022 (Phase 1)

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