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What will be the value of x, y and z in the following equation? H 2 C 2 O 4 + x H 2 O 2 → y C O 2 + z H 2 O

Options

  1. A2, 1, 2
  2. B1, 2, 2
  3. C2, 2, 1
  4. D1, 2, 1

Correct answer

B. 1, 2, 2

Step-by-step solution

(i) The half reaction for oxidation is, H 2 C 2 O 4 → C O 2 Balancing carbon atoms on both sides, H 2 C 2 O 4 → 2 C O 2 Balancing hydrogen atoms on both sides, H 2 C 2 O 4 → 2 C O 2 + 2 H + Balancing the charge on both sides, H 2 C 2 O 4 → 2 C O 2 + 2 H + + 2 e - ...(i) (ii) The half reaction for reduction is‐ H 2 O 2 → H 2 O Balancing oxygen atoms on both sides, H 2 O 2 → 2 H 2 O Balancing hydrogen atoms, H 2 O 2 + 2 H + → 2 H 2 O Balancing the charge, H 2 O 2 + 2 H + + 2 e - → 2 H 2 O ...(ii) Now, adding b

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