MCQ on Haloalkanes and Haloarenes: Chemistry is considered to be the most scoring subject in NEET JEE Exam. As it is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, master NEET/JEE Chemistry concepts. Chemistry demands the attention of students in understanding reactions and concrete basic understanding but once done it only gets easier from there. Mastering NCERT syllabus for NEET/JEE Chemistry should be topping your list of to-do for chemistry.

In this post we are providing you MCQ on Haloalkanes and Haloarenes, which will be beneficial for you in upcoming NEET, JEE, Medical and Engineering Exams.

MCQ on Haloalkanes and Haloarenes

Q1. Phosgene is commonly known as _______.
a) carbonyl chloride
b) phosphoryl chloride
c) thionyl chloride
d) carbon dioxide and phosphine

Q2. A Grignard reagent may be made by reacting magnesium with _______.
a) Ethyl iodide
b) Ethyl alcohol
c) Methyl amine
d) Diethyl ether

Q3. The decreasing order of boiling points of alkyl halides is _______.
a) RF > RCl > RBr > RI
b) RBr > RCl > RCl > RF
c) RI > RBr > RCl > RF
d) RCl > RF > RI > RBr

Q4. Which of the following undergoes nucleophilic substitution exclusively by S_N1 mechanism?
a) Chlorobenzene
b) Benzyl Chloride
c) Ethyl chloride
d) Isopropyl chloride

Q5. Which of the following is most reactive towards SN1 reaction?
a) C₈H₅CH₂Br
b) C₆H₅CH(CH₃)Br
c) C₆H₅CH(C₆H₅)Br
d) C₆H₅C(CH₃)C₆H₅Br

Q6. A solution of (+) 2-chloro-2-phenylethane in toluene racemises slowly in the presence of a small amount of SbCl₅, due to the formation of _______.
a) carbanion
b) carbene
c) carbocation
d) free radical

Q7. The reaction of tert butyl bromide with sodium methoxide produces mainly _______.
a) isobutane
b) isobutylene
c) tert-butyl methyl ether
d) sodium tert butoxide

Q8. The increasing order of nucleophilicity would be?
a) Cl^– < Br^– < I^–
b) I^– < Cl^– < Br^–
c) Br^– < Cl^– < F^–
d) I^– < Br^– < Cl^–

Q9. C-Cl bond of chlorobenzene in comparison to C-Cl bond in methyl chloride is _______.
a) Longer and weaker
b) Longer and stronger
c) Shorter and weaker
d) Shorter and stronger

Q10. CH₃CH₂CH₂Br + NaCN → CH₃CH₂CH₂CN + NaBr, will be fastest in _______.
a) Water
b) ethanol
c) methanol
d) N, N-dimethylformamide

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