Question

Hair shampoos belong to which class of synthetic detergent?

• A. Anionic
• B. Cationic
• C. Neutral
• D. None of these

Answer 1

The correct option is B Cationic

Synthetic detergents used in hair shampoos, usually contain a modified ammonium ion as an active site, which produces a germicidal action. Example: dodecylaminehydrochloride $\left(C_{12}{H}_{28}ClN\right)$ and hexadecyltrimethylammonium bromide $\left(C{H}_3\right(C{H}_2{)}_{15}N\left(C{H}_3{)}_3^{+}B{r}^{-}\right)$.