Asecondary alcohol has a hydroxyl group bonded to a(n) carbon bonded to one alkyl group carbon bonded to two alkyl groups carbon bonded to three alkyl groups aromatic carbon.

A secondary alcohol has a hydroxyl group bonded to a carbon bonded to two alkyl group carbon

Explanation:

Based on the organic chemistry nomenclature:

A primary carbon is one which is bonded to another carbon atom

A secondary carbon is bonded to two carbon atoms i.e. one on either side

A tertiary carbon is bonded to 3 other carbon atoms

In the case of alcohols, the functional group is the hydroxyl i.e. the -OH group. Here a secondary alcohol has a -OH group which is bonded to two alkyl groups carbon. In other words, the OH group is linked to a C atom which is flanked by carbon atoms on either side.

Isopropanol is an example of a secondary alcohol

H3C-CH(OH)-CH3

Here the OH group is bonded to the C atom attached to 2 -CH3 groups

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.