A purple coloured non-metal forms a brown solution in alcohol which is applied as antiseptic. Which non-meal is this?(A) Sulphur(B) Chlorine(C) Oxygen(D) Iodine

To solve the question, we need to analyze the clues provided:

Purple coloured non-metal: Among the options given, iodine is known to appear as a purple solid in its elemental form.

Forms a brown solution in alcohol: Iodine dissolves in alcohol (usually in the form of tincture of iodine), producing a brown solution.

Applied as an antiseptic: Iodine is widely used as an antiseptic in medical applications, especially in the form of tinctures.

Now, let's evaluate the options:

(A) Sulphur: Sulphur is a yellow non-metal and does not fit the description.

(B) Chlorine: Chlorine is a greenish-yellow gas and not purple, so it doesn't match the description.

(C) Oxygen: Oxygen is a colorless gas and does not fit any of the descriptions.

(D) Iodine: As mentioned earlier, iodine is a purple solid, forms a brown solution in alcohol, and is commonly used as an antiseptic.

Based on this analysis, the correct answer is:

(D) Iodine