Question

What is the action of metal hydrogen carbonate with acid? Give one example.
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)

Answer 1

Solution:
When an acid reacts with a metal hydrogen carbonates then a salt, carbon dioxide gas and water are formed.

Metal hydrogen carbonate + acid -----> salt + carbon dioxide + water

For example:
When dilute hydrochloric acid reacts with sodium hydrogen carbonate than sodium chloride, carbon dioxide and water are formed.

NaHCO3 (s)+ HCl (aq) -----> NaCl(aq) + CO2(g) + H2O(l)

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Answer 2

when acid reacts with metal carbonate give rise to metal salt,carbon dioxide and water. Example
caco3 + 2hcl ----> cacl2 +co2 +h2o