An alcohol X(C₅H₁₂O) when reacted with conc. HCl and anhydrous ZnCl₂, produces turbidity instantly. The alcohol X can be prepared from which of the following reactions?
1
Reduction of 2-pentanone with NaBH₄
2
Reaction of isopropyl magnesium bromide with ethanal
3
Reaction of ethyl magnesium bromide with propanal
4
Acid catalysed hydration of 2-methyl-1-butene