What is the total number of sigma and pi | Class 11 Chemistry Chapter Chemical Bonding and Molecular Structure, Chemical Bonding and Molecular Structure NCERT Solutions

Question:

What is the total number of sigma and pi bonds in the following molecules?

(a) C2H2 (b) C2H4

Answer:

 

Sigma (σ) bond is the bond formed when the two half -filled atomic orbitals overlap along their inter-nuclear axes. Sigma bond will always represent a single bond.

Pie (π) bond is formed when the two half- filled atomic orbitals belonging to the bonding atoms overlap along sides (sidewise or lateral overlap).

A double bond will always have one sigma bond and one pie bond.

A triple bond will always have one sigma bond and two pie bond. So from the structure of C2H2, it is clear that it has three sigma bonds and two pie bonds.

From the structure of C2H4,it is clear that it has five sigma bonds & one pie bond.

 


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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 28: What is the total number of sigma and pi bonds in the following molecules? (a) C2H2 (b) C2H4....