Question

In the given substances which pair form mixture of X, Y?

• A. Sand, sawdust
• B. Iron, sulphur
• C. Iodine, sand
• D. Gun powder

Answer 1

Answer: (B)

Iron, sulphur

Magnetic separation is used to separate a mixture of two solid substance on the basis of their magnetic properties. Since from a mixture of X and Y, X can be separated using magnetic separation, X must be a solid magnetic material and Y must be a solid non-magnetic material. Since X is magnetic in nature, it must be iron.

Distillation is a process used to separate a homogeneous mixture of two substances on the basis of their boiling point. Hence, for carrying out distillation, one of the substances must be a liquid. Hence, Z is a liquid. For forming a homogeneous mixture, Y must be miscible in solvent. Hence Y is sulphur