The number of pi bonds in C₆H₆ (benzene) is:
In benzene ( C₆H₆ ), there are 6 C-C sigma bonds, 6 C-H sigma bonds, and 3 pi bonds from alternating double bonds in its ring structure.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: VSEPR Theory and Shapes of Molecules