Which of the following statements are correct about barbiturates?

(a) Hypnotics or sleep producing agents.

(b) These are tranquilizers.

(c) Non-narcotic analgesics.

(d) Pain reducing without disturbing the nervous system.

In hypermetropia image formed by eye lens is beyond retina and is focussed to retina by a convex lens.

Cetyltrimethyl ammonium bromide is an example of Cationic detergent

Phenelzine is an example of Tranquilizer

Coca alkaloid or cocaine is obtained from Erythroxylum coca.