Which of the following species/molecules does not have same number of bond pairs and lone pairs? — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Step 1: Draw the Lewis structures of each species to count the total number of bond pairs and lone pairs. Step 2: For OCN^-, bond pairs = 4, lone pairs = 4; for H2O, bond pairs = 2, lone pairs = 2; for C2H2Cl2, bond pairs = 6, lone pairs = 6. Step 3: For O3, the total number of bond pairs is 3, while the total number of lone pairs is 6. Thus, O3 does not have the same number of bond pairs and lone pairs (option d).