Simple distillation can be used to separate 

Options

A. A mixture of benzene (boiling point `80^@`C) and toluene (boiling point `110^@c`)
B. A mixture of ether (boiling point `35^@ C` and toluene (boiling point `110^@` C
C. A mixture of ethanol (boiling point `78^@` C) and water ( boiling point `100^@C`)
D. None of these

Answer

B

Explanation

Distillation is used to separate liquid when the difference in the boiling point is more than `20^@C`