NEET UG CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

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Ulmann’s reaction is used for the preparation of:

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Correct option: A

Diphenyl

Option A (Diphenyl) is correct because Ullmann's reaction involves the coupling of aryl halides in the presence of copper to form biaryls, such as diphenyl.

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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

? Which process does not occur during formation of

\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}^{-}

The correct statement is A solution of

Ni{(N{O_3})_2}

is electrolyzed between platinum electrodes using 0.1 Faraday electricity. How many mole of Ni will be deposited at the cathode? Most reactive compound towards nucleophilic addition among the following is