WAEC - Chemistry (2008 - No. 38)
Arrange the following compounds in order of increasing boiling point
l.CH\(_3\)CH\(_2\)CH\(_2\)OH
II.CH\(_3\)CH\(_2\)OH
III.CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)OH
IV.CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)CH\(_3\)
l.CH\(_3\)CH\(_2\)CH\(_2\)OH
II.CH\(_3\)CH\(_2\)OH
III.CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)OH
IV.CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)CH\(_3\)
I < II < IV < III
IV < III < II < I
I < II < III < IV
IV < II < I< III
Explanation
| propanol | 97°C |
| Ethanol | 78°C |
| Butanol | 118°C |
| Pentane | 36.1°C |
Hence, the arrangement is IV, II, I, III.
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