Write one equation in each case to show the action of sulphuric acid on:
(a) Calcium bicarbonate
(b) Sugar
(c) Sulphur
(a) Ca(HCO3)2 + H2SO4 ⟶ CaSO4 ↓ + 2H2O + 2CO2 ↑
(b) C<em>12H</em>22O11Cane Sugar (s)→Conc. H2SO412C (s)Sugar Charcoal+11H2O\underset{\text{Cane Sugar}}{\text{C}<em>{12}\text{H}</em>{22}\text{O}_{11}} \text{ (s)} \xrightarrow{\text{Conc. H}_2\text{SO}_4} \underset{\text{Sugar Charcoal}}{12\text{C (s)}} + 11\text{H}_2\text{O}Cane SugarC<em>12H</em>22O11 (s)Conc. H2SO4Sugar Charcoal12C (s)+11H2O
(c) S + 2H2SO4 ⟶ 3SO2 + 2H2O
