. A metal compound ‘X’ reacts with dilute hydrochloric acid to produce effervescence. The gas (Y) evolved extinguishes a burning candle. Write a balance


Best Answer

Metal compound ‘X’ is calcium carbonate because it reacts with dilute hydro chloric acid and gives calcuim chloride water and carbon dioxide gas which extinguishes a burning candle. Hence y is  carbon dioxide.

       CaCO3          +       2HCl        →                CaCl2    +    CO2  +  H2O

 

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