Question

3. What is the advantage of galvanized iron over tin-plated iron?​

Answer 1

The advantage of galvanized iron over tin-plated iron is that galvanized iron does not rust even if there is a scratch on the coating of the zinc layer on the iron surface.

Answer 2

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The advantage of galvanized iron over tin-plated iron is that galvanized iron does not rust even if there is a scratch on the coating of the zinc layer on the iron surface.