Question

What is titration?
[A] A technique used to analyse properties of solutions. It involves adding a titrant to the solution to be analysed.
[B] A way to determine the concentration of an acid but not a base.
[C] A way to perform neutralization reactions.
[D] A way to determine the concentration of a base but not an acid.

Answer 1

When we conduct a titration, we keep adding the titrant to the given solution until the colour changes. The colour change depicts that the titration is over. By conducting a titration we get a relation between the concentration and the volume of the two solutions involved.

Complete step by step answer:
In chemistry we often come across the term titration. It is a technique where we use a solution of known concentration to determine the concentration of a solution of unknown concentration.
Now let us discuss the terminologies used in a titration.
Typically, the titrant (the known solution) is added from a burette to a known quantity of the analyte (the unknown solution) until the reaction is complete. The end of the reaction is generally indicated by a colour change. We use an appropriate indicator to indicate the end point depending on the type of titration.
Generally in a titration, we take an acid and a base either strong or weak. This gives us four types of titration: strong acid + strong base, strong acid + weak base, weak acid + strong base and weak acid +weak base titration.
Knowing the volume of titrant added allows the determination of the concentration of the unknown. Often, an indicator is used to usually signal the end of the reaction, the endpoint.
Relation between the concentration and volume of the solution is-
${{N}_{1}}{{V}_{1}}={{N}_{2}}{{V}_{2}}$

Knowing the volume and concentration of the analyte will help us determine the concentration of the titration through the volume used for reaching the end point.
Now from the above discussion we can understand that titration is a technique used to analyse properties of solutions. It involves adding a titrant to the solution to be analysed.
So, the correct answer is “Option A”.

Note: During a titration, the equivalence point is basically the point of 100% neutralisation. The end point of a titration in presence of a given indicator is marked by a characteristic change.
However, the end point doesn’t actually coincide with the equivalence point. Due to this the solution is somewhat over-titrated or under-titrated which gives rise to small errors during titration. This is called indicator error.