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JEE Main & Advanced JEE Main Paper (Held On 16 April 2018)

  • question_answer
    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]

    A)        

    B)  

    C)       

    D)  

    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.


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