Question

Which one of the following molecules contains no p bond?
[2013]
(a) H₂O (b) SO₂
(c) NO₂ (d) CO₂

Answer 1

(a) H₂O is one of the following molecules contains no π - bond.

• All the molecules given in the option have 'O' atom but in H₂O ,the H-atom does not have any vacant orbital for π - bonding.
• All the other atom of SO₂ ,NO₂ and CO₂ have vacant orbital for π - bonding.

Answer 2

'H₂O' molecules contains no pi - bond.

Option: A

Explanation:

• According to chemistry, pi bonds are termed as covalent chemical bonds where the orbital with 2 lobes in one atom overlap with an orbital of another atom.
• This overlapping process occurs in lateral fashion. These electrons are supposed to have 0 electron density at a shared nodal plane.
• The nodal plane passes through 2 bonded nuclei. These bonds could be formed in double and triple bonds.
• In H2O, the H atom has no vacant orbital for pi – bond. So it does not have any pi – bond.  

To know more about pi - bond,

1) Difference between Sigma and pi - bond.

https://brainly.in/question/8692694

2) Why S orbital cannot form pi bond?

https://brainly.in/question/827565