Q. The substance coated on plastic taperecorder tapes is

  • (A) iron oxide
  • (B) magnesium oxide
  • (C) zinc oxide
  • (D) iron sulphate
✅ Correct Answer: (A) iron oxide

Published by Yashika ⭐ 3.75K Points at 07-Nov-2022 04:31 pm in Chemistry

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