Question

Sodium bicarbonate `(NaHCO_(3))` on gentle heting produces
A. `Na_(2)O_(3)+CO_(2)`
B. `Na_(2)CO_(3)+CO`
C. `NaCO_(3)+CO_(2)+H_(2)O`
D. `Na_(2)CO_(3)+CO+H_(2)O`

Answer 1

Correct Answer - C
Bicarbonates evolve carbon dioxide and turn into carbonates on gently warning. This is one test for bicarbonates in qualitative analysis.
`2MHCO_(3)overset(Delta)toM_(2)CO_(3)+CO_(2)+H_(2)O`
The thermal stability of bicarbonates increases down the groups with the increase of electropositive chracter of the metal.