A red colored compound ‘X’ when heated it decomposes to give a metallic silver deposit ‘Y’ along with the release of a neutral gas which rekindles a glowing splinter. Identify X and Y. Let this compound be ‘Y’.
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The red coloured compound is MERCURIC OXIDE (HgO)
This compound gets decomposed by heating to form a silver deposit. This is nothing but MERCURY (Hg) and the neutral gas is OXYGEN (O2) which rekindles a glowing splinter.
Equation: 2HgO ---> 2Hg + 02
∴ X = HgO, Y = Hg
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