Look at the figure shown and answer the following questions :

Write the reactions involved in test tubes A and B respectively.

Explanation

In test tube A, `2CH_(3)COOH+Na_(2)CO_(3) to 2CH_(3)COONa+H_(2)O+CO_(2)uparrow`
In test tube B, `Ca(OH)_(2)+CO_(2) to underset("(Milkiness)")(CaCO_3)+H_(2)O`
If `CO_2` is passed for a long time.
`CaCO_(3)+H_(2)O+CO_(2) to underset("(Milkiness disappears)")(Ca(HCO_3)_(2))`.