Which of the following structures represents the lowest-energy form of $(1S, 2S,
4R)$ -trimethyl -cyclohexane?

Out of the following, the alkene that exhibits optical isomerism is

Which mixture of structure in each beaker would rotate plane polarized light?

Which of the following will not show optical isomerism

The correct statement$(s)$ about the compound $\mathrm{H}_3 \mathrm{C}(\mathrm{HO}) \mathrm{HC}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3(\mathbf{X})$ is(are)

$(A)$ The total number of stereoisomers possible for ${X}$ is $6$

$(B)$ The total number of diastereomers possible for ${X}$ is $3$

$(C)$ If the stereochemistry about the double bond in ${X}$ is trans, the number of enantiomers possible for ${X}$ is $4$

$(D)$ If the stereochemistry about the double bond in ${X}$ is cis, the number of enantiomers possible for ${X}$ is $2$

Correct configuration of the following is