Q17 / 90 · JEE Main 2017 (02 Apr) · Chemistry

The correct sequence of reagents for the following conversion will be

A
${CH}_{3} MgBr, H^{+} / {CH}_{3} OH, {[Ag {({NH}_{3})}_{2}]}^{+} {OH}^{-}$
B
${CH}_{3} MgBr, {[Ag {({NH}_{3})}_{2}]}^{+} {OH}^{-}, H^{+} / {CH}_{3} OH$
C
${[Ag {({NH}_{3})}_{2}]}^{+} {OH}^{-}, {CH}_{3} MgBr, H^{+} / {CH}_{3} OH$
Correct answer
D
${[Ag {({NH}_{3})}_{2}]}^{+} {OH}^{-}, H^{+} / {CH}_{3} OH, {CH}_{3} MgBr$

Solution

The correct order of reagents for the following reaction is $[Ag {({NH}_{3})}_{2}]^{+} {OH}^{-}, H^{+} / {CH}_{3} OH, {CH}_{3} MgBr$ & the reaction as well as mechanism is as follows with the correct order of reagents.

The reaction involves ${SN}_{2}$ mechanism at second step which on further reaction with excess ${CH}_{3} MgBr$ to give the final product.

Hence, the correct answer is option: 'D'.

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