Assuming the principal quantum number () is identical, what is the correct decreasing order of bond — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Highly directional orbitals overlap more deeply and effectively than non-directional ones. Since p-orbitals are directional and s-orbitals are spherical, the extent of overlap and resulting bond strength follows the order $2p-2p > 2s-2p > 2s-2s$.