Carboxylic Acids Question 22

Question: Formic acid is obtained when

[NCERT 1974]

Options:

A) Calcium acetate is heated with conc. $ H_2SO_4 $

B) Calcium formate is heated with calcium acetate

C) Glycerol is heated with oxalic acid at $ 110^{o}C $

D) Acetaldehyde is oxidised with $ K_2Cr_2O_7 $ and $ H_2SO_4 $

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Answer:

Correct Answer: C

Solution:

$ \begin{matrix} COOH \\ \overset{|}{\mathop{C}}OOH \\ \end{matrix}\underset{Decarboxylation}{\mathop{\xrightarrow{\text{Glycerol,}110{}^\circ C}}}HCOOH+CO_2 $