A compound "x" on reaction with dilute acid evolve a gas that burns with a pop sound ,while compound "y" on reaction with dilute acid evolve a gas that turns lime water milky. Identify compound "x" and "y".
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X is a metal and Y is a metal carbonate or metal bicarbonate.
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Answer:
Let us consider X metal as Zinc here. Zinc reacts with dil. HCl to form zinc chloride and hydrogen gas.
Zn + dil 2HCl --------- ZnCl2 + H2↑
Here the compound Y is any metal carbonate or metal bicarbonate which reacts with dil. HCl to form salt, water and CO2 gas is evolved. Let us consider here Y as sodium carbonate or sodium bicarbonate.
Na2CO3 + 2HCl → 2 NaCl + H2O + CO2↑
NaHCO3 + HCl → NaCl + H2O + CO2↑
When carbon dioxide is passed through lime water, it turns milky.
Ca(OH)2 + CO2 → CaCO3+ H2O
Hence X is Zinc
Y is sodium carbonate or bicarbonate
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