Haloalkanes and halo arenes practice · Mixed difficulty

Wurtz reaction of methyl iodide yields an organic compound $\mathrm{X}$. Which of the following reaction also yields $\mathrm{X}$:

Aryl halides are less reactive towards electrophiles than alkyl halides due to:

$p\pi-d \pi$ bonding is not exhibited by

Out of following in which retention of configuration in product $?$ will take
place?

Ethylene dichloride and ethylidene chloride are isomeric compounds. Identify the statement which is not applicable to both of them?

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?

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.

Arrange the following carbonyl compounds in increasing order of their reactivity in nucleophilic addition reaction

i) Benaldehyde $\quad$ ii) P-Tolualdehyde
iii) P-Nitro benzaldehyde $\quad$ iv) Acetophenone

The reaction between a primary amine, chloroform and
few drops of alcoholic KOH is known as:

Which of these liquids would be unsuitable as an inert solvent for a Friedel-Crafts reaction?

Assertion : Chlorination of allylic hydrogen is difficult than vinylic hydrogen.

Reason : Allyl radical is stabilized by resonance.

$CH _3 CH _2- CH = CH _2 \xrightarrow{\text { NBS }} \underset{\text { One of the product }}{( X )} \xrightarrow{\text { alc. } KOH }( Y )$ The compound $( Y )$ is

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

What is the common name of the given compound?
$C{{H}_{3}}-\underset{\begin{matrix} | \\ Cl \\ \end{matrix}}{\mathop{CH}}\,-Cl$

Dehydrohalogenation in haloalkanes produces:

Ethyl alcohol gives ethyl chloride on treatment with:

For the carbylamine reaction we need hot alcoholic KOH and:

Compare the rate of $\mathrm{S}{\mathrm{N}^2}$ reaction
$\begin{array}{cccccccccccccccccccc} {C{H_3} - \mathop C\limits^{\begin{array}{cccccccccccccccccccc} O \\ {||} \end{array}} - C{H_2} - Br}&{C{H_3} - Br}&{C{H_3} - \mathop C\limits^{\begin{array}{cccccccccccccccccccc} O \\ {||} \end{array}} - C{H_2} - Cl}&{C{H_3} - Cl} \\ {(1)}&{(2)}&{(3)}&{(4)} \end{array}$

Ammonolysis of alkyl halides followed by the treatment with $NaOH$ solution can be used to prepare primary, secondary and tertiary amines. The purpose of $NaOH$ in the reaction is

In the reaction sequence,

${\mathrm{C}_2}{\mathrm{H}_5}\mathrm{Cl\;} + \mathrm{\;KCN}\xrightarrow{{{\mathrm{C}_2}{\mathrm{H}_5}\mathrm{OH\;}}}\;X\xrightarrow[\Delta ]{{{\mathrm{C}_2}{\mathrm{H}_5}\mathrm{OH\;}}}Y$

What is the molecular formula of Y?

The major product of the following reaction is:
$C{H_3} - \mathop {CH}\limits^{\begin{array}{cccccccccccccccccccc} {Cl} \\ | \end{array}} - C{H_3}\xrightarrow[{\begin{array}{cccccccccccccccccccc} {(ii){\text{ }}HBr,{\text{ peroxide}}} \\ {\left( {iii} \right){\kern 1pt} {\kern 1pt} {\text{aq}}.{\kern 1pt} {\kern 1pt} KOH} \end{array}}]{{{\text{ }}(i){\text{ Alc}}.{\text{ }}KOH}}$

Predict the order of reactivity of the following four isomers towards ${S}{{N}}^2$ reaction.
(I) ${CH}_3 {CH}_2 {CH}_2 {CH}_2 {Cl}$
(II) ${CH}_3 {CH}_2 {CH}({Cl}) {CH}_3$
(III) $\left({CH}_3\right)_2 {CHCH}_2 {Cl}$
(IV) $\left({CH}_3\right)_3 {CCl}$

Which of the following statements is correct?

Which one is the least reactive towards $\mathrm{SN}^1$ reaction?

Which can be hydrolysed most easily?

he catalyst used in the preparation of an alkyl chloride by the action of dry HCl on an alcohol is

Wurtz’s reaction involves the reduction of alkyl halide with

Benzylidene chloride is

${C_6}{H_5}C{H_2}Br\xrightarrow[{2.\,{H_3}{O^ + }}]{{1.\,Mg,\,\,{\text{Ether}}}}X$
The product $({X})$ is :-

If chloroform is left open in air in the presence of sunlight, it gives