Question

A molecule to be chiral should have ___________
a)A plane of symmetry
b)A centre of symmetry
c)An alternating axis of symmetr
d)No element of symmetry ​

Answer 1

Answer:

According to me its a.) or b.)

Answer 2

A molecule to be chiral should have a)A plane of symmetry.

a)A plane of symmetry:

A molecule is said to be achiral if it contains a plane that can be used to cut it into two symmetrical halves. As a result, the absence of such a plane indicates that a molecule is chiral.

Explanation for incorrect answer:

b) A center of symmetry:

Any point in space where any group on a molecule can be reflected back through that point at an equal distance but in the opposite direction and an equivalent group can be found is called a center of symmetry. So this is the wrong answer.

c) An alternating axis of symmetry:

An alternating axis of symmetry of order n is an imaginary axis such that rotating the molecule around it by 3600/n followed by reflection on a plane perpendicular to the axis produces a structure indistinguishable from the original one. So this is the wrong answer.

d)No element of symmetry;

Asymmetric refers to an object that lacks any element of symmetry. As a result, this is the incorrect answer.

As a result, for a molecule to be chiral, it must have a plane of symmetry.

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