JEE Main On 16 April 2018 Question 9
Question: In a complexpmetric tritration of metal ion with ligand $ M(Metal,ion)+L(Ligand)\to C(Complex) $ end point is estimated spectrophoto-metrically (through light absorption). If ‘M’ and ‘C’ do not absorb light and only ‘L’ absorbs, then the titration plot between absorbed light versus volume of ligand ’ L’ (V would like: [JEE Main 16-4-2018]
Options:
A) 
B) 
C) 
D) 
Show Answer
Answer:
Correct Answer: C
Solution:
- Initially volume of ligand increases then ligand combine with metal and form a complex, so when we add ligand it will not affect absorbed light. After a period of time, when all metals are consumed then complex will not be formed so, only ligand volume will increase which will result in the increase of absorbed light.
