Question

Gammexane is the name given to:
A. ${C_6}{H_3}C{l_3}$
B. ${C_6}{H_4}C{l_2}$
C. ${C_6}{H_6}C{l_6}$
D. Diphenyltrichloroethane

Answer 1

Gammexane in Pharmaceutical industries is known as lindane and is also called as gamma-hexachlorocyclohexane, Gammallin it is an organic chemical that is used as an agricultural insecticide and as a pharmaceutical treatment for lice and scabies.

Complete answer: Gammexane is sometimes also called as benzene hexachloride or BHC which is one of the stereoisomers of hexachlorocyclohexane which is formed when addition of chlorine is done in presence of light onto benzene.
As the name suggests benzene hexachloride hence the formula for Gammexane is ${C_6}{H_6}C{l_6}$,

So, the correct formula for Gammexane ${C_6}{H_6}C{l_6}$, Option C.

Additional information: The chemical was originally synthesized by Faraday and is known to be a gamma isomer of hexachlorocyclohexane, The medication of Gammexane or lindane was in use since $1995$ but was given a title of second-line treatment this is when the first-line treatment fails then this second-line treatment is prescribed. The production of lindane was one of the sources of contamination of the environment, as its manufacturing produces tons of wastes which is harmful for our environment, there is a process known as cracking which is used in converting the toxic wastes into less toxic wastes, when the chemical is used for agricultural uses due to its volatile nature approximately $30\%$ is vaporized in the atmosphere and which settles down during rain which can easily go through groundwater levels and water bodies thus causing contamination.

Note:
The WHO has listed Gammexane as moderately hazardous and approximately eleven years ago restricted its production and transport, and the production of lindane or Gammexane was banned for its agricultural use and that is why it is also used a second-line treatment for lice and scabies not as a first-line treatment.