Question

For reaction BF, + NaH-P+Q
If Q is sodium salt, then incorrect statement is :
(T) Pis electron deficient compound
2)P forms adduct with PH3
3)Acidified MnO2.oxidizes Q into a coloured gas
(4) Q forms white precipitate with CaCl2, solution​

Answer 1

Answer:

In Diborane structure, each Boron bonds with 4 hydrogen atoms. But Boron valency is 3. Each Boron gives 3 valence electrons but for the 4

th

bond, there is no electron from Boron side which makes it electron deficient.

(Refer to Image 2)

In AlCl

3

, Al atom bonds with 3 Cl atoms. But here it violates octet rule. There are no bonds or lone pairs, which makes the surrounding electron count 8. It has only 3 bonds which makes 6 electrons. So, it is an electron deficient compound. So, both AlCl

3

and B

2

H

6

are electron deficient compounds