Choose the correct one.
☆ Which of the following is mixed with iron to make it rust proof?
1. Carbon
2.Nickel
3.Chromium
4.All of them
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Choose the correct one.
☆ Which of the following is mixed with iron to make it rust proof?
1. Carbon
2.Nickel
3.Chromium
4.All of them
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YOUR ANSWER IS 4 OPTION (ALL OF THEM)
PLZ MARK MY ANSWER AS BRILIANT ABSWER PLZ