Question

-20
(a)
Explain the following:
Lead does not form Pbl.
(m) [SiF]? is known whereas [Sici]2-not.
(m) All alloys are used to make aircraft body.
(b) Complete the following reactions :
BF,+LiH '
F H
& HBO, BOTH02​

Answer 1

Answer:

Here's the answers :

Explanation:

a.

1. for lead due to inert pair effect +2 oxidation state is more stable than +4.
2. In SiCl6 Cl atoms are large I size so not stable around Si due to repulsion while F atoms are smaller in size.
3. alloys have the property of being lighter and stronger than metals.

b.

1. BF3 + 3LiH BH3 +3 LIF
2. 2H3BO3 B2O3 + H2O