Which of the following properties is $NOT$ identical for enantiomers?

Lactic acid,in which a methyl group,a hydroxyl group,a carboxylic acid group,and a hydrogen atom are attached to a central carbon atom,shows optical isomerism due to the molecular geometry at the:

The stereoisomers that are formed by electrophilic addition of bromine to $trans-but-2-ene$ is/are:

An enantiomerically pure acid is treated with a racemic mixture of an alcohol having one chiral carbon. The ester formed will be

Which of the following molecules contains an asymmetric carbon atom?

Which of the following is chiral?