Metal compound A reacts with dilute HCl acid to produce effervescence. The gas evolved extinguishes a burning candle. If one of the compounds is calcium chloride, then write the balanced chemical reaction equation for this reaction.

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Detailed Solution

Metal compound A reacts with dilute HCl acid to produce effervescence. The gas evolved extinguishes a burning candle. If one of the compounds is calcium chloride, the chemical reaction is,

$CaC O_{3} + 2 HCl \to CaC l_{2} + C O_{2} + H_{2} O$ .
The evolved gas produces effervescence, so it must be carbon dioxide.

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