A shiny brown coloured element X on being
heated in air turns black due to the
formation of a compouthe'Y'on being
treated in our which is black in colour The
compound Y' on being treated with a gas I
which burns with a pop sound gives back
the element X. Identify X Y and Z.
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The shiny brown element 'X' is Copper (Cu). The reaction when it is heated in air is given as :
2Cu(Brown) +O
2
(on heating) → 2CuO (black)
The black coloured substance formed is Cupric oxide (CuO)
Hope it helps
2Cu(Brown) +O
2
(on heating) → 2CuO (black)
The black coloured substance formed is Cupric oxide (CuO)
Hope it helps
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