NEET UG CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

1 Medium

1 of 1

Analyzing +4 | -1

Read the following statements
A. Gabriel phthalimide synthesis is used to prepare all

{1^0}

amines
B.

{C_6}{H_5}Cl{C_6}{H_5} - {C_6}{H_5}

is known as Wurtz reaction.
C. In

S{N^1}

mechanism there is more inversion than retention leading to partial racemization
D. All aldehydes give red precipitate with Fehling’s solution
E. Reactivity order of alkyl halides towards

S{N^2}

reaction is

{1^0} > {2^0} > {3^0}

Number of correct statements among these

View answer and explanation

Correct option: A

Option A is correct because only statements C and E are correct. Gabriel synthesis gives only primary amines, Wurtz reaction is different, aldehydes don't always give red precipitate.

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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