Question

Type of back bonding in (SiH)20 is :​

Answer 1

Answer:

We can compare bond angle here through back bonding here (SiH3)2O in this Si is an element of third period so it has vacant p,d-orbitals so it can perform back bonding so bond lengths of Si-O is less due to strong bonding and hence bond angle is more compared to C-O bond

Answer 2

Answer:

2p-3p pi back bonding

Explanation:

Silicon belongs to the 3rd period and oxygen belongs to the second period and since oxygen is donating the lone pair, its name is written first i.e. 2p and 3p back bond