There are 4 primary alcohol for C5H12O they are pentan-1-ol, 2-methylbutan-1-ol, 3-methylbutan-1-ol and 2,2-dimethylpropan-1-ol There are 3 secondary alcohol possible for C5H12O which are pentan-2-ol, pentan-3-ol and methylbutan-2-ol. Only one tertiary alcohol possible for C5H12O which is 2-methylbutan-2-ol.
