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A is a reddish brown metal which combine...

A is a reddish brown metal which combines with `O_2` at ` lt 1370 K ` gives B, a black coloured compound. At a temperature ` gt` 1370 K, A gives C which is red in colour. Find A, B and C with reaction.

Text Solution

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Reddish brown metal A is copper .
`underset(" Copper (II) oxide (black) ")( underset((A))(2Cu)+O_2 overset("below " 1370K) to underset((B))(2CuO))`
` underset(" Copper (I) oxide (red )") (4Cu+O_2 overset( " above 1370 K") to underset((C))(2Cu_2O))`
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