Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

Suggest reasons why the B–F bond lengths in BF3 (130 pm) and BF4- (143 pm) differ.
Asked by Topperlearning User | 12 Aug, 2014, 04:46: PM
answered-by-expert Expert Answer
  • In BF3, B atom is sp2 hybridised and has one unhybridised empty 2p atomic orbital.
  • This empty 2p orbital overlaps sideways with fully filled 2p atomic orbital of F to form dative pΠ- pΠ bond.
  • This reduces the bond length.
  • In BF-4, B atom is sp3 hybridised, all B-F bond are single covalent bond.
Answered by | 12 Aug, 2014, 06:46: PM
CBSE 11-science - Chemistry
Asked by mufeedatvp2000 | 18 Apr, 2020, 02:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 03:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 04:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 04:05: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 04:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 04:08: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 04:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 31 May, 2016, 01:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 04:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Topperlearning User | 12 Aug, 2014, 05:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×