Skip to main content
Back to HALOALKANES AND HALO ARENES

JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

1 Medium
1 of 1
Understanding +4 | -1
Arrange the following in the increasing order of ease of dehydrohalogenation
CH3CH2Cl,CH3CH(Cl)CH3,(CH3)3CCl\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Cl}, \mathrm{CH}_3 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_3,\left(\mathrm{CH}_3\right)_3 \mathrm{CCl}
View answer and explanation
Correct option: A
CH3CH2Cl<CH3CH(Cl)CH3<(CH3)3CCl\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Cl} < \mathrm{CH}_3 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_3 < \left(\mathrm{CH}_3\right)_3 \mathrm{CCl}
Option A (CH3CH2Cl<CH3CH(Cl)CH3<(CH3)3CCl\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Cl} < \mathrm{CH}_3 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_3 < (\mathrm{CH}_3)_3 \mathrm{CCl}) is correct because the ease of dehydrohalogenation follows the stability of the carbocation formed, which is tertiary > secondary > primary.

More Questions from HALOALKANES AND HALO ARENES

Practice All Chapter MCQs →
An alkyl halide reacts with metallic sodium in dry ether. The reaction is known as : In electrophilic substitution reaction of chlorobenzene, the chloro group: Which of the followings statements is/are incorrect? Polymerization of alkenes takes place through Assertion (A): The boiling points of alkyl halides decrease in the order:
RI>RBr>RCI>RFRI > {R B r} > {R C I} > {R F}.

Reason (R): The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass. Friedel-Craft’s reaction of bromobenzene with methyl iodide gives:
Type at least 2 characters or jump directly:
🩺 NEET MCQs 🔬 JEE MCQs 🎯 JEE College Predictor Study guides 📊 Dashboard
🔓

Save your learning progress

Sign in with a free account to save your practice answers and quiz results, then return to them when you revise.

Continue with Free Account →