MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

A pi ( ) bond is formed by the lateral or sideways overlapping of half-filled atomic orbitals (like p or d orbitals) after the formation of a sigma ( ) bond. Because the extent of overlapping in a bond is less than that in a bond, a bond is weaker than a bond. The presence of a bond between two atoms increases the bond order (e.g., from single to double or triple bond). An increase in bond order leads to a stronger attractive force between the atoms, which decreases the bond length. For example, the C-C single bond length is 1.54 , whereas the C=C double bond length is 1.34 . Therefore, the statement that the presence of a bond increases the bond length is incorrect. Answer: The presence of Pi ( ) bond increases the bond length of covalent bond.