Given below are the groups of certain substances of particular categories. Mention the category of each group and identify the one wrong example in it giving a reason.
(a) Lysol, benzoic acid, DDT, mercurochrome.
(b) Formalin, iodine, Lysol, phenol.
(c) BCG, DTP, ATP.
(d) Tears, skin, nasal secretion, HCl (in the stomach).
Group of substances | Categories | Wrong substance | Explanation | |
(a) | Lysol, benzoic acid, DDT, mercurochrome. | Antiseptics. | DDT | DDT is a wrong example for this category as it belongs to disinfectant which is not good for human skin. |
(b) | Formalin, iodine, Lysol, phenol. | Disinfectants | Iodine | Iodine is a wrong example as it is an antiseptic. |
(c) | BCG, DTP, ATP. | Vaccines. | ATP | ATP is a wrong example as it is used as an energy carrier in the cells of all known organisms. |
(d) | Tears, skin, nasal secretion, HCl (in the stomach). | Germ-Killing Secretions. | Skin | Skin is a wrong example as it is a protective mechanical barrier. It prevents the entry of microorganisms at first place. |
Couldn't generate an explanation.
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