Among the following which one can have a meso form?
$CH_3CH(OH)CH(Cl)C_2H_5$
$CH_3CH(OH)CH(OH)CH_3$
$C_2H_5CH(OH)CH(OH)CH_3$
$HOCH_2CH(Cl)CH_3$
Which of the following compound is achiral?
Which one of the following is an optically active compound
Out of the following which are chiral?