Question

8. A carboxylic acid can be converted into the corresponding anhydride using :
(A) SOC12 (B) SO2
(C) Conc. H2504 (D) P205
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Answer 1

conc.H2SO4..is used ...

Answer 2

Hiii.....friend

The answer is Conc.H2SO4.

Because it acts as dehydrating agent. And removes water from the carboxylic acid.

And forms corresponding anhydride.

:-)Hope it helps u.