A mixture of sulphur and carbon disulphide is:

One of the following represents the solution of solid in a solid. This one is:

The rusting of an iron object is called:

Tincture of iodine has antiseptic properties. This solution is made by dissolving:

Which of the following are physical changes?

(i) melting of iron metal

(ii) rusting of iron metal

(iii) bending of an iron rod

(iv) drawing wire of iron metal