Question

Chlorine in the concentration of $0.2$ to $0.4$ ppm in aqueous solution, mixed with sulphur dioxide in very low concentrations form.
A. Disinfectants
B. Antibiotics
C. Antiseptic
D. None of the above

Answer 1

The aqueous solutions of chlorine are used to kill bacteria on inert surfaces. The chlorine solution works against microorganisms.

Step by step answer: The chemical reagents that are used to destroy the microorganism such as bacteria on an inert surface are known as a disinfectant. Disinfectants can kill the microorganism or just weaken or reduce the amount of harmful microorganism. Different chemical compounds such as Hypochlorite and calcium hypochlorite are the compounds of chlorine. These compounds are dissolved in water to make a chlorine solution.
Chlorine in the concentration of $0.2$ to $0.4$ ppm in aqueous solution, mixed with sulphur dioxide to make disinfectant.
So, option (A) is correct.
The chemical substances used against bacterial infection within the human body are known as antibiotics such as penicillin. Antibiotics do not work for the virus. So, option (B) is incorrect.
The chemical substances used to reduce the chance of antimicrobial infection on the living tissue such as cuts and wounds are known as antiseptic such as furacine. So, option (C) is incorrect.

Therefore, option (A) Disinfectants, is correct.

Note: Disinfectants are used on the inert surface such floor whereas the antiseptics are used on the living surface such as wounds and cuts on a human body whereas the antibiotics are taken by humans and antibiotics work for bacterial infection. Disinfectant has a higher amount of chemical compounds whereas the antiseptic has a lower concentration of chemical compounds because a high amount can irritate the body. Antibiotics are taken by humans whereas the antiseptics are applied on the skin.