BharatNotes Titration
nounUsage in a UPSC answer
Effective fiscal policy resembles a delicate titration: the state must add stimulus in measured, incremental doses, halting the instant inflationary pressures signal that the economy has reached its point of equilibrium.
Synonyms
Antonyms
Word Family
titrate (v), titrated (adj), titrating (v pres.p), titrant (n), titrimetric (adj)
Root
French titre = standard, fineness of alloyed gold; titrer = to determine standard strength; -ation = noun suffix
Etymology
From French titrer (to determine the standard strength), from titre (standard, fineness of alloyed gold); the noun titration first appeared in the 1860s.
Memory Hook
Think "TITLE" + "ration": the original titre meant the title or grade of gold's purity, and you ration in a reagent drop by drop until the measure is exact.
How This Word Works in UPSC Writing
A quantitative technique in which a solution of known concentration is added in measured amounts to one of unknown concentration until the reaction is complete, allowing the unknown to be calculated. The distinction that separates a careful answer from a loose one is between the equivalence point, where the reactants have combined in exactly their stoichiometric proportion, and the end point, where the indicator actually changes colour. These are not the same event, and a well-chosen indicator simply makes the gap between them small enough to ignore. Titration is not limited to acids and bases: redox titrations use potassium permanganate, which is self-indicating because its own purple colour disappears as it reacts, and complexometric and iodometric methods extend the principle. Everyday applications include determining water hardness and detecting adulteration in milk.
Don’t Confuse It With
The titrant is the solution of known concentration delivered from the burette, and the analyte or titrand is the unknown in the flask. The equivalence point is the stoichiometric completion of the reaction, while the end point is where the indicator visibly changes, and the small difference between them is the titration error. A standard solution is one of accurately known concentration, and a primary standard is a pure stable substance from which such a solution can be prepared directly.
Hindi Meaning
अनुमापन (anumāpan); अनुमापक for the titrant.
Common Questions
- What is titration?
- A method of finding an unknown concentration by adding a solution of known concentration until the reaction between them is just complete.
- What is the difference between the equivalence point and the end point?
- The equivalence point is where the reactants have combined in exactly stoichiometric proportions, while the end point is where the indicator changes colour, and a good indicator keeps the two close.
Tip: press Alt+S to hear pronunciation
