Formic acid is obtained when :

Options

A. Calcium acetate is heaed with conc. `H_(2)SO_(4)`
B. Calcium formate is heated with calcium actate
C. Glycerol is heated with oxalic acid at `110^(@)C`
D. Acetaldehyde is oxidised with `K_(2)Cr_(2)O_(7)` and `H_(2)SO_(4)`

Answer

C