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. Give reasons. [4 MARKS] (a) Benzoic acid, DDT, mercurochrome. (b) Formalin, iodine, lysol, phenol. (c) BCG, DTP, ATP. (d) Tears, skin, nasal secretion, HCI(in stomach).

Given below are the groups of certain substances of particular categor

1.	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. Give reasons. [4 MARKS] (a) Benzoic acid, DDT, mercurochrome. (b) Formalin, iodine, lysol, phenol. (c) BCG, DTP, ATP. (d) Tears, skin, nasal secretion, HCI(in stomach).
Answer» 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. Give reasons. [4 MARKS] (a) Benzoic acid, DDT, mercurochrome. (b) Formalin, iodine, lysol, phenol. (c) BCG, DTP, ATP. (d) Tears, skin, nasal secretion, HCI(in stomach).