Question

Cetyltrimethylammonium bromide is a popular:
A: Anionic detergent
B: Cationic detergent
C: non-ionic detergent
D: sweetener

Answer 1

Hint:
A detergent may be defined as a surfactant or a mixture of surfactants that has cleaning properties in dilute solution with water. Detergents are similar to soap. General formula of detergents is $R - SO_4^ - N{a^ + }$.

Complete step by step answer:
Detergent can be defined as a surfactant. Surfactants are those compounds which lower the surface tension between two liquids or between liquid and solid or between gas and a liquid. Along with detergents surfactants can also act as wetting agents, emulsifiers, foaming agents etc. Detergent is similar to soap. General formula of detergent is $R - SO_4^ - N{a^ + }$.
IUPAC name of Cetyltrimethylammonium bromide $\left( {CTAB} \right)$ is hexadecyl(trimethyl)ammonium bromide. Chemical formula of Cetyltrimethylammonium bromide is ${C_{19}}{H_{42}}BrN$. Cetrimonium cation acts as an antiseptic agent against bacteria and fungi. Cetyltrimethylammonium bromide is a quaternary ammonium surfactant. It is a popular cationic detergent.
So, the correct answer is option B.

Additional information: Cetrimonium chloride and cetrimonium stearate is also related to Cetyltrimethylammonium bromide. These compounds are widely used in shampoos and cosmetics. $CTAB$ is a costly compound. Due to which it is used in selected cosmetics. $CTAB$ is used in synthesis of gold nano-particles, conditioners etc. Surfactants play an important role in nanoparticles synthesis. Surfactants absorb the surface of the forming nanoparticle and flowers the surface energy of the nanoparticle. Surfactants help in preventing aggregation as well.


Note:
Sweetener is a substance that is sweet like sugar and has low calories. This is a synthetic product which is used in place of sugar. In some cases sweeteners may cause headache, depression and seizures to the individual.