CBSE Class 12 Haloalkanes and Haloarenes with Answers Multiple Choice Questions with Answers. MCQ Questions Class 12 Haloalkanes and Haloarenes with Answers with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Haloalkanes and Haloarenes with Answers MCQs with Answers to know their preparation level.
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MCQ Questions Class 12 Haloalkanes and Haloarenes with Answers - Set - 5
Question 1:
If one H is replaced by a Cl atom in C4H9Cl, the total number of structural isomers will be
(a) 4
(b) 5
(c) 7
(d) 10
Correct Answer – (D)
Question 2:
In chlorination of benzene, the reactive species is
(a) Cl+
(b) Cl–
(c) Cl2
(d) Cl−2
Correct Answer – (A)
Question 3:
Which among MeX, R-CH2X, R2CHX, R3CX is most reactive towards SN2 reaction
(a) MeX
(b) RCH2X
(c) R3CHX
(d) R3CX
Correct Answer – (A)
Question 4:
The addition of HBr is easiest with
(a) CH2 = CHCl
(b) ClCH = CHCl
(c) CH3-CH = CH2
(d) (CH3)2C = CH2
Correct Answer – (D)
Question 5:
Which of the following are arranged in the decreasing order of dipole moment?
(a) CH3Cl, CH3Br, CH2F
(b) CH3Cl, CH3F, CH3Br
(c) CH3Br, CH3Cl, CH3F
(d) CH3Br, CH3F, CH3Cl
Correct Answer – (B)
MCQ Questions Class 12 Haloalkanes and Haloarenes With Answers
Question 6:
An organic compound, on treatment with Br2 in CCl4 gives bromo derivative of an alkene. The compound will be
(a) CH4-CH = CH2
(b) CH3-CH = CH-CH3
(c) HC = CH
(d) H2C = CH2
Correct Answer – (C)
Question 7:
Number of stereoisomers of the compound 2-chloro-4- methylhex-2-ene is /are
(a) 1
(b) 2
(c) 4
(d) 16
Correct Answer – (C)
Question 8:
Unpleasant smelling carbylamines are formed by heating alkali and chloroform with
(a) Any aliphatic amine
(b) Any aromatic amine
(c) Any amine
(d) Any primary amine
Correct Answer – (D)
Question 9:
The reactivity order of halides for dehydrogenation is
(a) RF > RCl > RBr > RI
(b) RI > RBr > RCl > RF
(c) RI > RCl > RBr > RF
(d) RF > RI > RBr > RCl
Correct Answer – (B)
Question 10:
SN1 reaction of alkyl halides leads to
(a) retention of configuration
(b) racemisation
(c) inversion of configuration
(d) none of these
Correct Answer – (B)
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