Question

Predict the major product of acid catalysed dehydration:
(i) 1-methyl cyclohexanol
(ii) Butan-1-ol

Answer 1

Due to Saytzeff rule, in $\left(i\right)$ the product where double bond is formed at the more substituted carbon is the major product. But as Saytzeff rule is only valid for 2° and 3° alcohols, a primary alcohol like $\left(ii\right)$ will form a terminal alkene as the major product.