2NaHCO3 250∘C−−−−→ _______ +H2O+CO2
2NaHCO3 250∘C−−−−→ Na2CO3 + H2O+CO2
Sodium bicarbonate when heated at gives sodium carbonate, water and carbon-dioxide.
Find the odd-man-out.
(a) HNO3, H2SO4, HCl, Na2CO3
(b) MgO, CaO, H2O, Na2O
(c) NaHCO3, NaOH, NH4OH, CH3COOH
(d) NaCl, C12H22O11, KCl, CuSO4
(e) HCl, H2SO4, HNO3, CH3COOH
On passing CO2, through concentrated solution of Na2CO3 gives
Na2CO3 + H2O + CO2 → ___