A calcium compound reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Identify the compound and the gas evolve

Q. A calcium compound reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Identify the compound and the gas evolve

  1. Calcium Carbonate, Carbon dioxide
  2. Calcium chloride, carbondioxide
  3. Calcium oxide, hydrogen
  4. Calcium carbonate, hydrogen

Answer: Calcium Carbonate, Carbon dioxide

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