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Chemistry

A blue crystalline solid 'X' on heating gave a reddish brown gas 'Y', a gas which relits a glowing splint and a residue which is black. Identify X and Y, and write the equation for the action of heat on X.

Nitric Acid

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Answer

X is Copper nitrate [Cu(NO3)2]

Y is Nitrogen dioxide gas (NO2)

2Cu(NO3)2Δ2CuO+O2+4NO22\text{Cu(NO}3)2 \xrightarrow{\Delta} 2\text{CuO} + \text{O}2 + 4\text{NO}2

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