Which one of the following is employed as a tranquiliser drug?

Solution :
Tranquiliser are the chemicals that reduce anxiety and mental tensional. Tranquiliser is the strain reliever also used for mild and essential component of sleeping pills. Thus, they are sometimes called psychotherapeutic drugs. Equanil, valium and serotonin and barbiturates (hypnotic) are some commonly used tranquilisers.