Chemistry
Grade-10
Easy
Question
Gas P formed after the reaction between acid and compound A, when directed towards a burning candle extinguishes it. A is
- Metal Sulphate
- Metal Carbonate
- Metal Sulphide
- Metal oxide
Hint:
When metal carbonate reacts with acid produces salt, water and carbon dioxide.
The correct answer is: Metal Carbonate
When metal carbonate reacts with acid produces salt, water and carbon dioxide. Carbon dioxide extinguishes a burning candle.
Acid + Carbonate 
Salt + Water + Carbon dioxide
Na2CO3 + 2HCl 2NaCl + H2O + CO2
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