CBSE Class 12 Chemistry 2017 Outside Delhi Set 1 Solved Paper

Question : 18 of 26

Marks: +1, -0

Write the structures of compounds A, B and C in the following reactions :
(a)

{\CH}_3- {\COOH} { {─────▸}}↖{ {\NH}_3 \/ ∆} {\A} { {─────▸}}↖{ {\Br}_2 \/ {\KOH}( {\aq})}

\;\text " B "\; { {─────▸}}↖{ {\CHCl}_3+\;\text " alc. "\; {\KOH}} {\C}

(b)

\; {\C}_6 {\H}_5 {\N}_2^{+} {\BF}_4^{-} {─────▸} ↖{{ {\NaNO}_2 {\Cu}}}↙{∆} {\A} { {─────▸}}↖{ {\Fe} \/ {\HCl}}

\; {\B} { {─────▸}}↖{ {\CH}_3 {\COCl} \/ \;\text " pyridine "\;} {\C}

Solution:

(a)

(b)

\; {\C}_6 {\H}_5 {\N}_2^{+} {\BF}_4^{-}   {─────▸} ↖{{ {\NaNO}_2 \/ {\Cu}}}↙{∆} {\C_6\H_5\NO_2} ↙{\Nitrobenzene (A)} {  {─────▸}}↖{ {\Fe} \/ {\HCl}}

\; {\ {\C_6\H_5\NH_2} }↙{\Aniline} {  {─────▸}}↖{ {\CH}_3 {\COCl} \/ \;\text " pyridine "\;} {{\C}_6 {\H}_5 {\NHCOCH}_3}↙{{\N} \text "-phenyl ethanamide "}

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