The solution of mercury with other metals is called

Bypassing hydrogen gas through vegetable oil, it is converted in to

A. butter

B. milk

C. ghee

D. condensed milk

Fog is a solution to

A. air in water vapors

B. air in air

C. vapors in vapors

D. water vapors in air

To prepare ammonia gas, the gaseous mixture of

A. hydrogen and chlorine is used

B. hydrogen and nitrogen is used

C. hydrogen and helium is used

D. hydrogen and iodine is used

The solution of copper and zinc forms

A. sodium

B. mercury

C. brass

D. silver

The number of moles of solute dissolved per dm3 of the solution is

A. molality

B. percentage

C. concentration

D. molarity