Case: Read the passage and answer the following questions

Alcohol can be prepared in many ways. Alcohols are prepared from alkenes by acid catalysed hydration and by hydroboration–oxidation. Alcohols are even prepared from ketones and aldehydes by reduction. The reduction of carboxylic acid and ester leads to the formation of alcohol. Alcohols are produced by the reaction of Grignard reagents with aldehydes and ketones. Phenol, also known as carbolic acid, was first isolated in the early nineteenth century from coal tar. Nowadays, phenol is commercially produced synthetically. In the laboratory, phenols are prepared from benzene derivatives in many ways.

Which of the following method is used to prepare ethyl alcohol from ethylene industrially?

By absorbing in H₂SO₄ followed by hydrolysis

CH₂=CH₂ → CH₃-CH₁-HSO₄ → CH₃CH₂OH