Question

The laboratory process in which the volume of a solution of known concentration is used to determine the concentration of another solution is called
(1) distillation (2) fermentation
(3) titration (4) transmutation

Answer 1

It is called (3) titration. 
Hope this would help~

Answer 2

Answer : The correct option is, (3) titration

Explanation :

Titration : It is a laboratory process where we have to use the volume of a solution of known concentration to determine the concentration of unknown solution.

Distillation : It is a process in which we used to separate a pure liquid from the mixture of the liquids based on the different boiling points.

Fermentation : It is a chemical process in which the the bacteria, an organism or yeast converts the carbohydrate into an alcohol or an acid.

Transmutation : It is a process in which the nucleus of a chemical elements changes into another.

Hence, the correct option is, (3) titration