The functional group present in cresols is

Options

A. `-CHO`
B. `-COOH`
C. `-OH` (alcoholic)
D. `-OH` (phenolic)

Answer

D

Explanation

Cresols are hydroxy toluencs, `CH_(3)C_(6)H_(4)OH`. These occur in the middle and heavy oil fractions of coal-tar. The mixture of the three cresols (together with a little phenol) is known as cresylic acid or creosote and is used for preserving purpose e.g. timber, railway sleepers, etc. A solution of cresols in soapy water is known as lysol, which is used as a disinfectant.