Formic acid is obtained when:...

Formic acid is obtained when:

A

`(CH_3COO)_2Ca` is heated with conc.`H_2SO_4`

B

Calcium formate is heated with calcium acetate

C

Glycerol is heated with oxalic acid

D

Acetaldehyde is oxidised with `K_2Cr_2O_7` and conc.`H_2SO_4`

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The correct Answer is:

C

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