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In the following indentify the compounds...

In the following indentify the compounds/reaction conditions represented by the alphabetes C, D, E:
`C_(6)H_(5)COOH overset(PCl_(5))rarr C overset(NH_(3))rarr D overset(P_(2)O_(5)) rarr C_(6)H_(5)CN overset(H_(2)//Ni)rarr E`

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`C_(6)H_(5)CO OH overset(PCl_(5))to underset("(C)")(C_(6)H_(5)COCl)overset(NH_(3))tounderset("(D)") (C_(6)H_(5)CONH_(2))overset(P_(3)O_(5))underset(-H_(2)O)toC_(6)H_(5)CN overset(H_(2)//Ni)to underset("(E)")(C_(6)H_(5)CH_(2)NH_(2))`
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In the following identify the compounds/reaction conditions represented by the alphabets (A), (B) , and ( C) : C_(6) H_(5) COOH overset(PCl_5)rarr (A)overset(NH_(3) rarr (B) overset(P_2 O_5)rarr C_(6) H_(5) CN overset(H_2 //Ni)rarr (C) .

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