Question

Among the following compounds which can be dehydrated very easily?

• A. $C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}C{H}_{2}OH$
• B. $C{H}_{3}C{H}_{2}C{H}_{2}CH\left(OH\right)C{H}_3$
• C. $C{H}_{3}C{H}_{2}CH\left(C{H}_3\right)C{H}_{2}C{H}_{2}OH$
• D. $C{H}_{3}C{H}_2-\left(C{H}_3\right)C\left(OH\right)C{H}_{2}C{H}_3$

Answer 1

The correct option is D $C{H}_{3}C{H}_2-\left(C{H}_3\right)C\left(OH\right)C{H}_{2}C{H}_3$

The ease of dehydration of alcohols is tertiary > secondary > primary according to the order of stability of the carbocations.

The more stable carbocation is generated, thus more easily it will be dehydrated.

Option D is correct.