Haloalkanes and Haloarenes PYQs - Last 5 Years

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Practice 32 COMEDK Chemistry questions from Haloalkanes and Haloarenes. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Last 5 Years Haloalkanes and Haloarenes Questions

Showing 32 of 32 filtered questions.

1Haloalkanes And Haloarenes

Two statements, Assertion and Reason are given. With reference to them, choose the correct option.
Assertion: Hydrolysis of 2-Bromo-2-methylpropane follows $S_N 1$ mechanism which involves 2 steps and the first step is:
Reason: The energy r...

2Haloalkanes And Haloarenes

Identify the wrong statement from the following

3Haloalkanes And Haloarenes

Select the reagents needed to convert Benzene to 4-Bromophenylpropene in the correct sequential order.
(A). $\mathrm{Cl}_2 / \Delta$
(B). $\left(\mathrm{CH}_3\right)_2-\mathrm{CHCl}$ /anhyd. $\mathrm{AlCl}_3$
(C). Alc. KOH
(D). $\mathrm{Br}...

4Haloalkanes And Haloarenes

With reference to the two statements Assertion and Reason, choose the correct option.
Assertion: The order of reactivity towards $\mathrm{S}_{\mathrm{N}} 1$ reaction is: $\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_2 \mathrm{Br}>\left(\mathrm{CH}...

5Haloalkanes And Haloarenes

Identify the final product $[Z]$ formed when Chlorobenzene undergoes the given series of reactions:

6Haloalkanes And Haloarenes

Identify the compound which gives an optically active haloalkane on reaction with $\mathrm{H}_2$ / Ni on heating.

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7Haloalkanes And Haloarenes

Which one of the following is a true statement with reference to reaction between 2- Bromo-2-methylpropane and aqueous KOH ?

8Haloalkanes And Haloarenes

Both reactions (i) and (ii) give the same compound X as the major product. Identify X
(i). 3-Methylbut-1-ene $+\mathrm{HCl} \rightarrow \mathrm{X}$
(ii). Neopentyl alcohol $+\mathrm{HCl}\left(\right.$ anh. $\left.\mathrm{ZnCl}_2\right) \rig...

9Haloalkanes And Haloarenes

Which of the following haloalkanes will give more than one isomeric product, on being heated with alc. KOH ?

10Haloalkanes And Haloarenes

The correct order of reactivity of halogens with alkanes is :

11Haloalkanes And Haloarenes

Identify the reagents to be used to complete the given reaction.

12Haloalkanes And Haloarenes

Toluene when reacted with $\mathrm{Cl}_2$ gas at 385 K forms a product X which undergoes further reaction with Sodium ethoxide to yield product Y . The structure of Y is ___________ .

13Haloalkanes And Haloarenes

Identify the incorrect statement.

14Haloalkanes And Haloarenes

Choose the incorrect statement from the following.

15Haloalkanes And Haloarenes

Which one of the following compounds when reacted with \(\mathrm{NaOH}\) (aq) undergoes Substitution Nucleophilic Bimolecular reaction with retention of configuration?

16Haloalkanes And Haloarenes

Arrange the following compounds in the increasing order of their reactivity when each of them is reacted with chloroethane / anhydrous AlCl\(_3\).

17Haloalkanes And Haloarenes

Identify the products C, D and F formed in the following sets of reactions.

18Haloalkanes And Haloarenes

Match the names of reactions given in Column I with the appropriate reactions given in Column II.

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19Haloalkanes And Haloarenes

Arrange the compounds \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) in the increasing order of their reactivity towards \(\mathrm{S_N}1\) reaction.
$$
\begin{aligned}
& \mathrm{A}=\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{...

20Haloalkanes And Haloarenes

Identify the final product formed when Toluene undergoes a series of reactions with reagents given in the order:
(i) \(\mathrm{Cl}_2\) / Sunlight
(ii) \(\mathrm{H}_2 \mathrm{O} / 373 \mathrm{~K}\)
(iii) Acetophenone / \(\mathrm{OH^-}\) at $...

21Haloalkanes And Haloarenes

The major product obtained in the following reaction is :

22Haloalkanes And Haloarenes

Arrange the following compounds in the decreasing order of reactivity towards electrophilic substitution reaction.
(I) Chlorobenzene
(II) Nitrobenzene
(III) Benzene
(IV) Isopropylbenzene

23Haloalkanes And Haloarenes

Consider the following reaction
\((\mathrm{CH}_3)_2 \mathrm{CHCH}_2 \mathrm{Br}+(\mathrm{CH}_3)_3 \mathrm{CCH}_2 \mathrm{Br} \xrightarrow[\Delta]{\mathrm{Na} \text { /dry ether }} \mathrm{X}+\mathrm{Y}+\mathrm{Z}\)
Identify the product whic...

24Haloalkanes And Haloarenes

Choose the incorrect statement from the following.

25Haloalkanes And Haloarenes

Arrange the following in the order of increasing reactivity towards \(\mathrm{SN}_{\mathrm{2}}\) reactions.
$$\begin{array}{ll}
\left(\mathrm{CH}_3\right)_3 \mathrm{CCH}_2 \mathrm{Br}(\mathrm{P}) ; & \\\mathrm{CH}_3\left(\mathrm{CH}_2\right...

26Haloalkanes And Haloarenes

Identify the compounds A, B, C and D.
\(\text { 1,2,2,2-tetrachloroethane } \xrightarrow[\Delta]{\mathrm{Zn}}[\mathrm{A}]\)
[A] \(\xrightarrow[675 \mathrm{~K}]{\text { Fe tube }}\) [B] $$
\xrightarrow[\text { Conc. } \mathrm{H}_2 \mathr...

27Haloalkanes And Haloarenes

Which one of the following will undergo Nucleophilic substitution, by \(\mathrm{S}_{\mathrm{N}}{ }^1\) mechanism, fastest?

28Haloalkanes And Haloarenes

The reactions taking place with \(\mathrm{2- Phenyl-2-bromopropane}\) as the starting material is shown below. Identify [A] and [B] formed in the reaction.
$$
\mathrm{C}_6 \mathrm{H}_5-\mathrm{C}\left(\mathrm{CH}_3\right)_2^{-} \mathrm{Br} ...

29Haloalkanes And Haloarenes

Identify A, B and C.

30Haloalkanes And Haloarenes

In Friedal-Crafts alkylation reaction of phenol with chloromethane, the product formed will be

31Haloalkanes And Haloarenes

\(t\)-butyl chloride preferably undergo hydrolysis by

32Haloalkanes And Haloarenes

Alkyl halides undergoing SN2 reaction do inverse