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1 mark

Statement I: The boiling points of the hydrides of group 16 elements increases in the order: Statement II: The boiling points of these hydrides increases with increase in molar mass.

  1. A
    Both Statement I and Statement II are correct.
  2. B
    Both Statement I and Statement II are incorrect.
  3. C
    Statement I is correct but Statement II is incorrect.
  4. D
    Statement I is incorrect but Statement II is correct.

Solution & Step-by-step Explanation

1. Statement I is incorrect: Due to extensive intermolecular hydrogen bonding, has an abnormally high boiling point, making it the highest in the group. The correct order is .2. Statement II is incorrect as a general trend for the whole group because violates the molar mass trend. While BP increases from to with mass, the statement fails to account for the most important member.

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Statement I: The boiling points of the hydrides of group 16 elements increases in the order: Statement II: The boiling points of these hydrides increases with increase in molar mass.
A
Both Statement I and Statement II are correct.
B
Both Statement I and Statement II are incorrect.
C
Statement I is correct but Statement II is incorrect.
D
Statement I is incorrect but Statement II is correct.

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p-blockgroup 16

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