Antiseptics and disinfectants either kill orprevent growth of microorganisms. Identifywhich of the following statements is not true:[NEET 2013]a)Chlorine and iodine are used as strongdisinfectants.b)Dilute solutions of Boric acid and HydrogenPeroxide are strong antiseptics.c)Disinfectants harm the living tissues.d)A 0.2% solution of phenol is an antisepticwhile 1% solution acts as a disinfectant.Correct answer is option 'B'. Can you explain this answer?

Question

Answer

B) Antiseptics and disinfectants both either kill or prevent the growth of microorganisms. The main point of difference between these two is that the former (antiseptics) are used for living beings whereas disinfectants are not safe for living tissues. These are actually used for inanimate objects like floors, tiles etc.

A substance like phenol in its lower concentration (0.2%) behaves as antiseptic whereas in higher concentration (1%) as disinfectant. Chlorine and iodine are strong disinfectants whereas dilute solutions of boric acid and hydrogen peroxide are mild

Answer

Antiseptics and disinfectants are used to kill or prevent the growth of microorganisms. The following statement is not true:

B) Dilute solutions of Boric acid and Hydrogen Peroxide are strong antiseptics.

Explanation:

Antiseptics and disinfectants serve different purposes. Antiseptics are used to prevent the growth and spreading of microorganisms on living tissues, while disinfectants are used to eliminate microorganisms from non-living surfaces. The true statements are as follows:

A) Chlorine and iodine are used as strong disinfectants.

Chlorine and iodine are considered strong disinfectants and are used in various forms to prevent the growth and spreading of microorganisms. Chlorine is commonly used to disinfect water, while iodine is used to disinfect medical equipment.

C) Disinfectants harm the living tissues.

Disinfectants are harmful to living tissues and can cause damage and irritation. Therefore, they are only used on non-living surfaces.

D) A 0.2% solution of phenol is an antiseptic while a 1% solution acts as a disinfectant.

Phenol is a common antiseptic and disinfectant. A 0.2% solution of phenol is considered an antiseptic and is used to prevent the growth of microorganisms on living tissues. A 1% solution of phenol is considered a disinfectant and is used to eliminate microorganisms from non-living surfaces.

In conclusion, the statement that dilute solutions of boric acid and hydrogen peroxide are strong antiseptics is not true. While these substances may have some antimicrobial properties, they are not considered strong antiseptics.

Answer

Hey buddy!!..Here's ur answer
Disinfectants harm the living tissues.

A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.

Chlorine and Iodine are used as strong disinfectants.

Dilute solution of boric acid is an antiseptic used to wash eyes and hydrogen peroxide is disinfectant.

Hence, the statement C is not true.

Hope it helps!!!

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