a compound A is green in colour on heating it gives a gas B which turns limewater milky. the residue left C is black in colour identify A B and C write the chemical reaction involved.
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Copper carbonate.
CuCO3 gives on heating CuO + Co2
copper carbonate on heating gives copperoxide and carbondioxide.
Copper carbonate which is light green in colour solid on heating gives a black residue. A colourless gas is evolved which turns the lime water milky.
CuCO3 gives on heating CuO + Co2
copper carbonate on heating gives copperoxide and carbondioxide.
Copper carbonate which is light green in colour solid on heating gives a black residue. A colourless gas is evolved which turns the lime water milky.
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