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An organic compound (A) of molecular formula C_2H_3NO on reaction with P_2O_5, gives C_2H_3N (B). (B) on hydrolysis gives (C) of formula C_2H_4O_2(C) on reaction with LiAIH_4gives (D) formula C_2H_6OIdentify A,B,C,D and explain the reactions involved. |
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Answer» SOLUTION :(i) (A) is identified as `CH_3CONH_2`acetamide. (ii) Acetamide on reaction with `P_2O_5`gives methyl CYANIDE as (B) `UNDERSET("acetamide (A) ")(CH_3CONH_2) underset(Delta)OVERSET(P_2O_5)(to) underset("methyl cyanide (B)")(CH_3CN) + H_2O` (iii) Methyl cyanide on acid hydrolysis gives ACETIC acid `CH_3COOH`as( C) `CH_3CN + 2H_2O overset(H^(+))(to) underset("acetic acid (C )")(CH_3COOH) + NH_3` (iv) Acetic acid on reaction with `LiAlH_4`gives ethanol as (D) `underset("acetic acid (C ) ")(CH_3-undersetoverset(||)(O)(C ) -OH) underset(4[H])overset(LiAlH_4)(to) underset("ethanol (D)")(CH_3 - CH_2OH) + H_2O` |
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