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NEET Chemistry Analytical Chemistry Question Bank Self Evaluation Test - Analytical Chemistry

  • question_answer
    In Kjeldahl's method for the estimation of\[{{\operatorname{N}}_{2}}\], potassium sulphate and copper sulphate are used. On the basis of their functions which of the following statement(s) is/are correct?
    I. Potassium sulphate raises the bpt. And ensures complete reaction.
    II. Copper sulphate acts as catalyst.
    III. Potassium sulphate acts as catalyst and copper sulphate raises the bpt.

    A) Only III is correct           

    B) I and II are correct

    C) Only II is correct            

    D) None is correct

    Correct Answer: B

    Solution :

    [b] \[{{K}_{2}}S{{O}_{4}}\] raises the bpt. and ensure complete reaction and \[CuS{{O}_{4}}\] acts as catalyst.


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