JEE Main202125 Feb 2021Morning ShiftChemistryp Block Elements (Group 13 & 14)Actual
The incorrect statement about B 2 H 6 is :
Options
- AAll B - H - B angles are of 120 °
- BThe two B - H - B bonds (bridged and terminal) are not of same length.
- CTerminal B - H bonds have less p -character when compared to bridging bonds.
- DIts fragment, BH 3 , behaves as a Lewis acid.
Correct answer
A. All B - H - B angles are of 120 °
Step-by-step solution
θ 2 > θ 1 ,         ∴ B - H (terminal) having less p character as compare to bridge bond. Both B - H - B (bridge bond and terminal bond) do not have same bond length. B - H - B bond angle is ≈ 90 ° BH 3 is electron deficient species and therefore acts as Lewis acid