Amongst dilute sulphuric acid, carbon disulphide and water which will you select to remove sulphur sticking to a crucible.?

Dear Student, 

If sulfur is sticking to crucible, any solvent which can dissolve it, can be used to remove it.

Out of the available options, carbon disulfide​​ ​​​​​can dissolve sulfur and hence can be used to remove sulphur sticking to a crucible.

Regards.