What is the IUPAC name of the organic compound formed in the following chemical reaction?
Acetone \(\frac{\text{(i) C}_{2} \text{H}_{5}\text{MgBr, dry Ether}}{\text{(ii) H}_{2}\text{O}, \text{H}^{+}}\) Product
1
2-methyl butan-2-ol
2
2-methyl propan-2-ol
3
pentan-2-ol
4
pentan-3-ol