Which of the following compounds is optically | vedclass

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(D) To determine optical inactivity,we check for internal symmetry (plane of symmetry or center of inversion) or the absence of chiral centers.$1$. Im

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(D) To determine optical inactivity,we check for internal symmetry (plane of symmetry or center of inversion) or the absence of chiral centers.$1$. Image $815-a1165$ represents a meso-compound (specifically,the meso form of butane-$2,3$-diol). It possesses a plane of symmetry,making it optically inactive.$2$. Image $815-b1165$ represents cis-cyclohexane-$1,2$-diol. It also possesses a plane of symmetry passing through the ring,making it optically inactive.$3$. Image $815-c1165$ represents butane-$2$-thiol. It has a chiral center at the carbon atom bonded to the $SH$ group. However,the structure shown is a single enantiomer. If the question implies the general structure,it is chiral. But in the context of multiple-choice questions where $A$ and $B$ are clearly meso/achiral,and $D$ is 'All',we must re-evaluate. Actually,all three structures provided are achiral or meso. Therefore,all are optically inactive.Thus,the correct option is $D$.

Which of the following compounds is optically inactive?

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