NEET UG CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

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C{H_3}C{H_2}C{H_2}Br + NaCN \to C{H_3}C{H_2}C{H_2}CN + NaBr

The above reaction will occur at fastest rate in

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Correct option: D

DMF

Option D (DMF) is correct because DMF is a polar aprotic solvent, which favors SN2 reactions by solvating the cation but not the anion, thus increasing the nucleophilicity of CN-.

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Which of the following compounds is an example of Freon? Which one of the following is most reactive towards aqueous

NaOH

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\mathrm{CHC}{\mathrm{l}_3}\mathrm{\;from\;\;}{\mathrm{C}_2}{\mathrm{H}_5}\mathrm{OH\;and\;bleaching}\;

powder? For the reaction

\mathrm{RCH}_{2} \mathrm{Br}+\mathrm{I}^{-} \stackrel{\text { Acetone }}{\longrightarrow} \underset{\text { major }}{\mathrm{RCH}_{2}} \mathrm{I}+\mathrm{Br}^{-}

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Ni{(N{O_3})_2}

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