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Question: Answered & Verified by Expert
Which of the following statements is wrong?
Chemistryp Block Elements (Group 15, 16, 17 & 18)
Options:
  • A
    Single $\mathrm{N}-\mathrm{N}$ bond is stronger than the single $\mathrm{P}-\mathrm{P}$ bond.
  • B
    $\mathrm{PH}_3$ can act as a ligand in the formation of coordination compounds with transition elements.
  • C
    $\mathrm{NO}_2$ is paramagnetic in nature.
  • D
    Covalency of nitrogen in $\mathrm{N}_2 \mathrm{O}_3$ is four.
Solution:
1913 Upvotes Verified Answer
The correct answer is:
Single $\mathrm{N}-\mathrm{N}$ bond is stronger than the single $\mathrm{P}-\mathrm{P}$ bond.
The single $\mathrm{N}-\mathrm{N}$ bond is weaker than the single $\mathrm{P}$ - $\mathrm{P}$ bond. This is why phosphorus show allotropy but nitrogen does not.

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