Question

What happen when benzamide reacts with p2o5?

Answer 1

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We know that P2O5 (or P4O10 is more correct to write) is a very strong dehydrating agent. So it takes away Water from Acetamide as follows. Cyanide as a major product. Amide reacts with phosphorous pentaoxide to give its substituted nitriles.

Answer 2

Answer:

aniline will be formed