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PIMSO 2021 - Science - Grade 6 - National Round Mock Test Question 7

PIMSO Science · PIMSO 2021 - Science - Grade 6 - National Round Mock Test

Question 7

When an iron nail gets rusted, iron oxide is formed
  1. without any change in the weight of the nail.
  2. with decrease in the weight of the nail.
  3. with increase in the weight of the nail.
  4. without any change in color or weight of the nail.