Which of the following is the correct order in the above diagram increasing boiling point, of the isomeric (C_{5}H_{12}) compounds?
-
A.
A -
B.
B -
C.
C -
D.
D -
E.
E
Correct Answer: Option D
Explanation
The boiling points of each of the compounds:
Pentane – 36.1°C ; 2- methylbutane – 27.8°C ; dimethylpropane – 10°C.
Therefore, the order of boiling point in ascending order is Dimethylpropane < 2-methylbutane < pentane.