Balancing the equation: 2KI + H₂O₂ → I₂ + 2KOH
LHS: 2K, 2I, 2H, 2O — RHS: 2K, 2I, 2H, 2O ✓
So x = 2 and y = 2. Answer: (A) 2, 2
Balance by inspection: 2 KI provides 2 I atoms (needed for I₂) and 2 K atoms, which combine with the 2 OH from H₂O₂ to give 2 KOH. Both x and y are 2. Always verify atom count on both sides for balancing MCQs.