What is the first mechanistic step in the acid-promoted dehydration of cyclohexanol? A base pulls off a hydrogen atom The OH group accepts a hydrogen ion from the acid Loss of a water molecule Formation of an alkene

The OH group accepts a hydrogen ion from the acid.

Explanation:

The lone pairs of electrons in the oxygen atom of the alcohol group will induce the first step in the reaction, where the OH group of cyclohexanol accepts a hydrogen ion from the acid. The most common acids being sulfuric and phosphoric acid.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.