Achiral' molecule among the following is
Propan-2-ol
butan-2-ol
2-chlorobutane
2-bromopropanoic acid

2-Methyl butan-2-ol is

The number of compounds showing enantiomers among the following compounds is Butan-2-ol, 2-Hydroxypropanoic acid, 2-Methylhexane, 2-Chlorobutane, 2-Bromo-2-chlorobutane, 2-Methylbutanoic acid, isopropyl chloride

Arrange the following compounds in increasing order of boiling point : Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol