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Test: Chirality - Chemistry MCQ


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10 Questions MCQ Test - Test: Chirality

Test: Chirality for Chemistry 2024 is part of Chemistry preparation. The Test: Chirality questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Chirality MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Chirality below.
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Test: Chirality - Question 1
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Which of the following compound(s) is/are chiral?

Test: Chirality - Question 2
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Which symmetry element makes the given compound achiral?
The symmetry element makes the given compound achiral Center of symmetry (COS)

Detailed Solution for Test: Chirality - Question 2

In order for a molecule to be achiral, it must be superimposable on its mirror image. Molecules with a center of symmetry and/or plane of symmetry meet this criterion.
The given molecule has centre of symmetry for the given figure.
For the given compound has rotation about C-C single bond is also possible, so after rotating one C while another is kept stationary, we get the structure where plane of symmetry passing through middle of the bond to get mirror images.
The plane of symmetry of the molecule is show below:

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Test: Chirality - Question 3
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Which of the following compound(s) is/are chiral?
The following compound(s) is/are chiral is Only B

Detailed Solution for Test: Chirality - Question 3

In order for a molecule to be chiral, it must not be superimposable on its mirror image. Molecules with a plane of symmetry or a center of symmetry do not meet this criterion. Molecule A has a plane of symmetry (shown above in fuchsia), molecule B has no symmetry.

Test: Chirality - Question 4
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Which symmetry element makes the given compound achiral?
The symmetry element makes the given compound achiral Plane of symmetry (POS)
Detailed Solution for Test: Chirality - Question 4

In order for a molecule to be achiral, it must be superimposable on its mirror image. Molecules with a plane of symmetry or a center of symmetry meet this criterion.

Test: Chirality - Question 5
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Which of the following is the definition of chirality?
Detailed Solution for Test: Chirality - Question 5

Chirality is not restricted to molecules. While it is common for the presence of a carbon atom in a molecule with four different substituents to be the origin of chirality of a compound, it is not a requirement for chirality.

Test: Chirality - Question 6
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Which of the following compound(s) is/are achiral?
The following compound(s) is/are achiral is I in given diagram
Detailed Solution for Test: Chirality - Question 6

In order for a molecule to be chiral, it must not be superimposable on its mirror image. Molecules with a plane of symmetry or a center of symmetry do not meet this criterion. Molecule II and III are not having symmetry element, they are chiral molecule. Molecule ‘I’ is having plane of symmetry, it is an achiral atom.

Test: Chirality - Question 7
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The given compound is a chiral molecule.
The given compound is a chiral molecule
Detailed Solution for Test: Chirality - Question 7

In order for a molecule to be chiral, it must not be superimposable on its mirror image. Molecules with a plane of symmetry or a center of symmetry do not meet this criterion. This molecule is not having any symmetry element, it is a chiral molecule.

Test: Chirality - Question 8
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The given compound is a chiral molecule.
Molecules with a plane of symmetry or a center of symmetry do not meet the criterion
Detailed Solution for Test: Chirality - Question 8

In order for a molecule to be chiral, it must not be superimposable on its mirror image. Molecules with a plane of symmetry or a center of symmetry do not meet this criterion. This molecule is having plane of symmetry, it is an achiral molecule.

Test: Chirality - Question 9
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Which of the following compound(s) is/are chiral?
The following compound(s) is/are chiral is Only A
Detailed Solution for Test: Chirality - Question 9

Chiral molecules are non-superimposable on their mirror images. A good way to determine whether a molecule is chiral is to determine whether it has a plane of symmetry. A molecule with a plane of symmetry is achiral (not chiral). Molecule 1 does not have a plane of symmetry so it is chiral. Molecules 2 and 3 both have planes of symmetry, so they are not chiral.

Test: Chirality - Question 10
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Which statement about a chiral compound A is incorrect?
Detailed Solution for Test: Chirality - Question 10

Follow the direction of the remaining 3 priorities from highest to lowest priority (lowest to highest number, 1<2<3). A clockwise direction is an R (rectus, Latin for right) configuration. A dextrorotary compound is often prefixed “(+)-” or “d-“

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Important Questions for Chirality

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Chirality MCQs with Answers

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