The substance coated on plastic tape recorder tapes is :

  1. Zinc  oxide
  2. Magnesium oxide
  3. Iron sulphate
  4. Iron oxide
Anurag Mishra Professor Asked on 23rd January 2016 in Chemistry.
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    Answer:  (4) Iron oxide 

    Anurag Mishra Professor Answered on 23rd January 2016.
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