A metal carbonate reacts with a solution X which forms a salt, water and a gas Y. What are X and Y ?

A metal carbonate reacts with a solution X which forms a salt, water and a gas Y. What are X and Y ?
  1. X – Sodium hydroxide, Y – Carbon dioxide
  2. X – Sodium hydroxide, Y – Hydrogen
  3. X – Hydrochloric acid, Y – Carbon dioxide
  4. X – Hydrochloric acid, Y – Hydrogen

Solution

X-Hydrochloric acid, Y-Carbon dioxide

Asked in: CBSE

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