Nootan Chemistry Class 12. We covered all the Nootan Chemistry Class 12 MCQs in this post for free so that you can practice well for the exam.
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Nootan Chemistry Class 12 Objective for Students
Objects that are superimposable in their mirror images are called
(A) Chiral
(B) Achiral
(C) Asymmetric molecules
(D) Configuration
Option b – Achiral
Find out the wrong statement about optical activity:
(A) Sphere, cube, and cone are superimposable with their mirror images.
(B) Pair of human hands are superimposable with each other.
(C) The objects which are superimposable with mirror images are called chiral molecules.
(D) The objects that are non-superimposable with mirror images are called achiral molecules.
Option b – Pair of human hands are superimposable with each other
The process of conversion of enantiomers into a racemic mixture is called
(A) Retention of configuration
(B) Racemisation
(C) Racemic modification
(D) Inversion of configuration
Option b – Racemisation
Which of the following haloalkanes is gaseous?
(A) Pentyl chloride
(B) Propyl chloride
(C) Ethyl chloride
(D) Butyl chloride
Option c – Ethyl chloride
Select the correct order of boiling point of alkyl halide.
(A) 1-chlorobutane > 2-chlorobutane > 2-chloro-2-methyl propane
(B) 2-chlorobutane > 2-chloro-2-methylpropane > 1-chlorobutane
(C) 2-chloro-2-methyl 1-1 propane > chlorobutane > 2-chlorobutane
(D) 1-chlorobutane > 2-chloro-2-methyl propane > 2-chlorobutane
Option a – 1-chlorobutane > 2-chlorobutane > 2-chloro-2-methyl propane
The property of a substance to rotate the plane of plane-polarized light toward clockwise or anticlockwise direction is called
(A) Optical inactivity
(B) Optical activity
(C) Asymmetric compound
(D) Racemates
Option b – Optical activity
The angle through which the plane of plane-polarized light is rotated is measured by
(A) Chirality meter
(B) Stereometer
(C) Optical meter
(D) Polarimeter
Option d – Polarimeter
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