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Question: Answered & Verified by Expert
What is the reason for the variation in boiling and melting points in Group 15?
Chemistryp Block Elements (Group 15, 16, 17 & 18)NEET
Options:
  • A Different atomic sizes
  • B Change in electronic configuration
  • C Presence of allotropy
  • D Isotopic composition
Solution:
2177 Upvotes Verified Answer
The correct answer is: Presence of allotropy
The paragraph mentions that all the elements in Group 15, except nitrogen, show allotropy, which could contribute to the variation in boiling and melting points.

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