Question

________ is used as a purple colored antiseptic solution.
A. Bromine
B. Chlorine
C. Iodine
D. Sulphur

Answer 1

Hint:
All given options are individual elements. Many elements are useful in their elemental forms. Antiseptic is a material which prevents the development of micro-organisms on the wounds.

Complete step by step answer:
Antiseptic cream contains that elemental nonmetal which has anti prevention properties against microorganisms.
Disinfectants also kill microorganisms but on the nonliving surfaces.
Bromine is used as disinfectant in swimming pools as a replacement for chlorine.
Chlorine has disinfectant properties rather than antiseptic properties. It is used in swimming pools against harmful contaminants.
Sulphur also had disinfecting properties.
For elemental iodine it was observed that it can be used both as disinfectant as well as antiseptic.
When used as antiseptic, a tincture of iodine is getting ready by mixing iodine in KI solution and spirit or alcohol.
Iodine as an antiseptic not only kills microorganisms, but also heals the cells.
Hence, the correct option is C.

Additional information:
People often interchange the words antiseptic and disinfectant which create havoc in a person’s mind. Just remember the big difference between the both: Antiseptic used on living tissues whereas disinfectant is used on nonliving surfaces.

Note:Iodine has its own color which is purple. On dissolving in Potassium or Sodium Iodide solution the color of iodine changes from purple to brown. Only \[{\text{2 to 7% }}\] iodine is dissolved in a solution of ethanol with potassium iodide which is a weak solution. Sulphur is the third most important abundant element in the human body.