A metal compound reacts with dilute hydrochloric acid to produce effervescence.
Q. A metal compound reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. If one of the compounds formed is calcium chloride. Then, what’s the name of the metal compound?
- Calcium carbonate
- Calcium chloride
- Calcium hydroxide
- None of the above
Answer: Calcium carbonate