Chemistry-10th Metals and Non-metals CBSE Board 2023 Medium
The iron pillar in Qutab Minar complex in Delhi was built 1600 years ago. It is still standing intact and sho…
The iron pillar in Qutab Minar complex in Delhi was built 1600 years ago. It is still standing intact and shows no signs of rusting even today. This shows that the ancient metallurgists of India in those times had fully developed metallurgical processes as well as the techniques of protection of different metals. The protection of metals, was done by several processes like coating of a thin film of another metal, alloying etc.
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