History, asked by Saifkhan9070, 1 year ago

A reddish brown color metal used in electrical wire When powdered and heated strongly the color turns black when hydrogen is passed over it it regain it's original color explain all changes and statereason behind it

Answers

Answered by rudeawakening
0
Brown coloured element is copper.

As we heat copper it gets oxidised and turns black

When we pass hydrogen over it get reduced back to copper thus regains its colour .


Hope this helps
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