Answer
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Hint: To answer this question, we must first know how an experiment of titration is conducted in a laboratory. In these experiments we take a volume of a solution of known concentration and add it to a volume of another solution in order to determine its concentration.
Complete step by step solution:
When performing an acid-base titration in a laboratory, we certainly must always have a way to detect if the neutralization reaction has occurred by some visual means. This is the reason scientists generally use an indicator which has a distinct difference in color when in an acidic or a basic medium. A common indicator which we usually use in the laboratories for strong acid-strong base titrations is phenolphthalein.
The standard solution is the solution in a titration whose concentration is known to us. It is also called the titrant or titrator. It is gradually added to the solution whose concentration we do not know. This solution needs to be analyzed hence we call it an analyte.
Keeping this in mind we can conclude that the correct answer of the question given is Option (A). True
Additional information:
The procedure is mentioned below for us to clearly understand the acid-base titration experiment:
A known volume of an acid of unknown concentration is taken in a conical flask.
A few drops of an indicator is then added to the acid and mixed by swirling the flask.
A burette is filled with the basic solution whose molarity is known to us.
The stopcock of the burette is then opened and base is gradually added to the acid while the flask is constantly swirled to ensure proper mixing. The stopcock is closed at the exact point where the indicator just changes color.
Note: While performing the experiment sometimes it so happens that a drop of pink appears and then vanishes. This is not the equivalence point. The base must be added till the pink color is persistent in the conical flask.
Complete step by step solution:
When performing an acid-base titration in a laboratory, we certainly must always have a way to detect if the neutralization reaction has occurred by some visual means. This is the reason scientists generally use an indicator which has a distinct difference in color when in an acidic or a basic medium. A common indicator which we usually use in the laboratories for strong acid-strong base titrations is phenolphthalein.
The standard solution is the solution in a titration whose concentration is known to us. It is also called the titrant or titrator. It is gradually added to the solution whose concentration we do not know. This solution needs to be analyzed hence we call it an analyte.
Keeping this in mind we can conclude that the correct answer of the question given is Option (A). True
Additional information:
The procedure is mentioned below for us to clearly understand the acid-base titration experiment:
A known volume of an acid of unknown concentration is taken in a conical flask.
A few drops of an indicator is then added to the acid and mixed by swirling the flask.
A burette is filled with the basic solution whose molarity is known to us.
The stopcock of the burette is then opened and base is gradually added to the acid while the flask is constantly swirled to ensure proper mixing. The stopcock is closed at the exact point where the indicator just changes color.
Note: While performing the experiment sometimes it so happens that a drop of pink appears and then vanishes. This is not the equivalence point. The base must be added till the pink color is persistent in the conical flask.
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