Question

On adding Carbon disulphide in greyish black compound of Iron sulphide, the correct observation is :
(a) the solution of Carbon disulphide colourless.
(b) the solution turns blue.
(c) the solution of Carbon disulphide turns green.
(d) the solution of Carbon disulphide turns yellow.

Answer 1

The solution of carbon disulphide stays colorless as carbon disulphide is a non-polar molecule.

Iron sulphide does not dissolve in carbon disulphide, and so solution remains colorless.