Arrange the given set of compounds in order of increasing boiling points.
1. -chloropropane
II. Iso - propyl chloride
III. 1 - chlorobutane

Options

A. `II lt III lt I`
B. `I lt II lt III`
C. `II lt I lt III`
D. `III lt I lt II`

Answer

C

Explanation

For n-alkyl halides, the b.p. increases as the size of the alkyl chain increases, i.e., the b.p. of 1-chlorobutane (III) is higher than that of 1-chloropropane (I).
Thus, option (c), i.e., IIltIltIII is correct.