InterviewSolution
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InterviewSolution
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An element 'X' on reaction with dilute acid evolves a gas that burns wihapop sound while a compound 'Y' on reaction with dilute acid evolves agsthat turns lime water milky. Identify 'X' and 'Y |
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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 ZincY is sodium carbonate or bicarbonate Like if you find it useful |
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