Question

The substance which is not used as an antiseptic is:

• A. bithionol
• B. $0.2\%$phenol
• C. $2-3\%$ iodine
• D. norethindrone

Answer 1

Answer: (D)

norethindrone

Bithionol (the compound is also called bithional) is added to soaps to impart antiseptic properties.

Iodine is a powerful antiseptic. Its $2-3\%$ solution in an alcohol-water mixture is known as tincture of iodine.

$0.2\%$ solution of phenol is an antiseptic.

But norethindrone is an example of a synthetic progesterone derivative, most widely used as an anti-fertility drug.