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NEET 2022
Exam
NEET
Year
2022
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

NEET 2022 · Chemistry · Chemical Bonding and Molecular Structure

Given below are two statements: Statement I: The boiling points of...

Given below are two statements:

Statement I: The boiling points of the following hydrides of group 1616 elements increases in the order - H2O<H2S<H2Se<H2Te{H}_{2}O < {H}_{2}S < {H}_{2}Se < {H}_{2}Te.

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:

Options

  1. ABoth Statement I and Statement II are incorrect
  2. BStatement I is correct but Statement II is incorrect
  3. CStatement I is incorrect but Statement II is correct
  4. DBoth Statement I and Statement II are correct

Correct answer

A. Both Statement I and Statement II are incorrect

Step-by-step 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{H}_{2}S < {H}_{2}Se < {H}_{2}Te < {H}_{2}O

H2O{H}_{2}O have the highest boiling point because of hydrogen bonding.

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