_____ are a class of chemical compounds used for the treatment of stress, and mild or even severe mental diseases.

Correct option is A

Correct Answer: (a) Tranquilizers
Explanation:
· Tranquilizers are a class of chemical compounds used to treat stress, anxiety, and mild to severe mental disorders.
· They act on the central nervous system (CNS) and help reduce tension, irritability, and produce a sense of calm.
Information Booster:
· Common tranquilizers include diazepam, alprazolam, and chlorpromazine.
· They are used in treating conditions like insomnia, anxiety disorders, schizophrenia, and emotional disturbances.
· They work by enhancing the effect of GABA, an inhibitory neurotransmitter in the brain.
Additional Knowledge :
· (b) Antiseptics: Chemicals applied to living tissues to prevent microbial growth (e.g., dettol, iodine).
· (c) Antibiotics: Drugs used to kill or inhibit bacteria.
· (d) Analgesics: Pain-relieving drugs (e.g., paracetamol, aspirin).