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Question: Answered & Verified by Expert
Boric acid in solid, whereas BF3 is gas at room temperature because of
Chemistryp Block Elements (Group 13 & 14)JEE MainJEE Main 2023 (30 Jan Shift 2)
Options:
  • A Strong ionic bond in Boric acid
  • B Strong van der Waal's interaction in Boric acid
  • C Strong hydrogen bond in Boric acid
  • D Strong covalent bond in BF3
Solution:
1839 Upvotes Verified Answer
The correct answer is: Strong hydrogen bond in Boric acid
Inter-molecular structure of Boric acid(H3BO3) in solid phase:

Boric acid has strong hydrogen bonding as we can see in the above figure, while BF3 does not. Therefore boric acid is solid.

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