What is the iupac name for (ch3)2coh(ch2)2ch3?

a. hexan-3-ol
b. 2-methylpentan-2-ol
c. 2-methylpentan-3-ol
d. dimethylpentan-1-ol

The answer is: B. 2-methylpentan-2-ol.

A functional group is a group of atoms that determines many of the properties of an organic molecule.  

Functional group for alcohol is hydroxyl group or hydroxy group (-OH).

Methyl group (-CH₃) is attached to second carbon atom of pentanol, that i why the name is 2-methyl.

Hydroxy group (-OH) is attached to second carbon atom of pentanol, that i why the name is 2-pentanol.

a:

by the combination of an unlimited number of elements