Discussion
The non-metal used in the purple coloured solution applied on wounds as antiseptic is
Answer: B
The non-metal is iodine.
NCERT's chapter on metals and non-metals uses this example: a solution of iodine (tincture of iodine) is applied on wounds as an antiseptic. Iodine kills bacteria and other microbes on the skin.
Chlorine is used to disinfect drinking water, not as a solution applied on wounds. Bromine is a corrosive, toxic liquid. Sulphur is used in making sulphuric acid, gunpowder and in some skin ointments, but it is not the non-metal in this antiseptic solution.
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