# What is the difference between an alcohol, and an alkane? What is the difference between a secondary alcohol, and a primary alcohol?

What is the difference between ${H}_{3} C - C H \left(O H\right) C {H}_{3}$ and ${H}_{3} C - C {H}_{2} C {H}_{3}$; what is the similarity between ${H}_{3} C - C H \left(O H\right) C {H}_{3}$ and ${H}_{3} C - C {H}_{2} O H$?