Consider the three isomeric alkanes n-hexane, 2, 3-dimethylbutane, anu 2-llylp following correctly lists these compounds in order of increasing boiling point? Circle correct Answer.
A) 2, 3-dimethylbutane < 2-methylpentane < n-hexane
B) 2-methylpentane C) 2-methylpentane < 2, 3-dimethylbutane < n-hexane
D) n-hexane<2-methylpentane <2, 3-dimethylbutane
E) n-hexane <2, 3-dimethylbutane<2-methylpentane

D) n-hexane<2-methylpentane <2, 3-dimethylbutane

Explanation:

structures with less branching have  high boiling point and low melting points this is because of freezing depression and boiling depression and stronger bonds.

c (diamond),

sio2 (quartz)

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be