NEET levelSingle correct optionDifficulty 1 of 3o2222
The alkene shown is treated with dilute aqueous acid, HX3OX+. Which structure is the major product?
AStructure A
BStructure B
CStructure C
DStructure D
Answer: C
The alkene is 2-methylpropene. Protonation gives the tertiary tert-butyl cation (Markovnikov), and water adds to it followed by loss of a proton. The product is 2-methylpropan-2-ol.