See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

2 2 2 2 2H O 2H O O   32 g O2 is obtained from 68 g H2O2 52 g O2 is obtained from 68 52g 32  M 34 68 52 2 32    68 52 2 M 32 34     = 6.50