Class 10 Science: Chemical Reactions and Equations – Answer Key Section A: Multiple Choice Questions Q1. Answer: (c) Equation: Fe + CuSO4 → FeSO4 + Cu Explanation: Iron is more reactive than copper and displaces it from copper sulphate solution. Q2. Answer: (c) (i), (ii) and (iv) Explanation: Iron gains oxygen to form Fe3O4,…