Q. Which among the given is not a method of preparing oxygen

  • (A) Decomposition of potassium permanganate
  • (B) Electrolysis of water
  • (C) Decomposition of manganese dioxide
  • (D) Fractional distillation of liquid air
✅ Correct Answer: (C) Decomposition of manganese dioxide

Published by Ram Sharma ⭐ 193.88K Points at 16-Mar-2022 05:13 pm in Chemistry

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