NEET UG CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

1 Medium

1 of 1

Understanding +4 | -1

Although chlorobenzene does not give Ulmann’s reaction. However, presence of…group in chlorobenzene at

o - ,p -

position enables it to give Ulmann’s reaction.

View answer and explanation

Correct option: A

\mathrm{N}{\mathrm{O}_2}

Option A (

\mathrm{N}{\mathrm{O}_2}

) is correct because the presence of a nitro group at the ortho- or para- position activates chlorobenzene towards nucleophilic substitution reactions like the Ullmann reaction.

More Questions from HALOALKANES AND HALO ARENES

Practice All Chapter MCQs →

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