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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 13 & 14)Practice

Total number of Boron atoms in anionic part of borax which participate in back bonding.

Options

  1. A3
  2. B4
  3. C2
  4. DNone of these

Correct answer

C. 2

Step-by-step solution

Borax 2 N a + [ B 4 O 5 ( O H ) 4 ] 2 - . 8 H 2 O s p 2 hybridised boron atoms only participate in p π -p π back bonding as they have vacant p-orbitals.

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