See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Meq of KMnO4 = Meq of H2C2O4 (V)  (M)(n) = W 1000 E  Or, (200)(M)(5)= 56.7 1000 902   M = 1.26  x . x     20 1 26 106 100