Which of the following alkali metal carbonates gives CO_(2) on heating as well as on treating with acids ?

Which of the following alkali metal carbonates gives CO_(2) on heating

1.	Which of the following alkali metal carbonates gives CO_(2) on heating as well as on treating with acids ?
Answer» `Na_(2)CO_(3)` `K_(2)CO_(3)` `Rb_(2)CO_(3)` `Li_(2)CO_(3)`. Solution :`Li_(2)CO_(3)rarrLi_(2)O+CO_(2)`and `Li_(2)CO_(3)+2HClrarr2LiCl +CO_(2)+H_(2)O`