Q. Colloidal gold is given by injection to act as

A) Disinfectant
B) Anticancer agent
C) Germ killer
D) Tonic to raise vitality of human systems
Explanation

(d)
In medical field, colloidal gold is used as tonic to raise vitality of human systems

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.