1.

Benzoic acid reacts with phosphorus pentaoxide in the presence of heat to give ________

A. C<sub>6</sub>H<sub>5</sub>OC<sub>6</sub>H<sub>5</sub>
B. C<sub>6</sub>H<sub>5</sub>COC<sub>6</sub>H<sub>5</sub>
C. C<sub>6</sub>H<sub>5</sub>COOC<sub>6</sub>H<sub>5</sub>
D. C<sub>6</sub>H<sub>5</sub>COOCOC<sub>6</sub>H<sub>5</sub>
Answer» E.


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