Which of the following molecules is (are) chi | vedclass

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(D) molecule is chiral if it lacks a plane of symmetry and a center of symmetry.$(I)$ $1$-chloro-$1$-bromoethene: It has a plane of symmetry (the mole

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$I, II, III$ and $VI$

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(D) molecule is chiral if it lacks a plane of symmetry and a center of symmetry.$(I)$ $1$-chloro-$1$-bromoethene: It has a plane of symmetry (the molecular plane),so it is achiral.$(II)$ $2,4$-dimethylhexane: It has a chiral center,so it is chiral.$(III)$ $trans$-$1,3$-dimethylcyclopentane: It has a plane of symmetry,so it is achiral.$(IV)$ Norbornane derivative: It has a plane of symmetry,so it is achiral.$(V)$ $4$-methylcyclohexane-$1,3$-dione: It has a chiral center,so it is chiral.$(VI)$ $2$-methylcyclohexane-$1,4$-dione: It has a chiral center,so it is chiral.Based on the analysis,the chiral molecules are $II, V,$ and $VI$. Since this specific combination is not provided in the options,and assuming the question intended to identify chiral structures among the given set,we re-evaluate the structures. Upon closer inspection,$I$ is achiral,$III$ and $IV$ are achiral due to symmetry. $II, V,$ and $VI$ are chiral. Given the options,there is a discrepancy in the provided choices.

Which of the following molecules is (are) chiral?

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