Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle .Write a balanced chemical equation for the reaction if one of the compound formed is calcium chloride.
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The gas formed which extinguishes a burning candle is carbon dioxide.one of the compound formed is calcium chloride hence the compound A is calcium carbonate (CaCO3) as when metal carbonate or metal hydrogencarbonate react with acid to produce a metal salt along with carbon dioxide and water.
CaCO3 + 2HCL ------>CaCl + CO2 + H2O
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As metal compound released is Calcium Chloride the gas evolved here is CO2. Hence metal A should be Calcium Carbonate. Hence the reaction between Calcium Carbonate and HCl is
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