1. Tardigrade
  2. Question
  3. Chemistry
  4. In Kjeldahl's method for the estimation of 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 b.pt. and ensures complete reaction. (ii) Copper sulphate acts as catalyst. (iii) Potassium sulphate acts as catalyst and copper sulphate raises the b.pt. (iv) Copper sulphate acts as co-catalyst

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Q. In Kjeldahl's method for the estimation of $N _2$, 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 b.pt. and ensures complete reaction.
(ii) Copper sulphate acts as catalyst.
(iii) Potassium sulphate acts as catalyst and copper sulphate raises the b.pt.
(iv) Copper sulphate acts as co-catalyst

Organic Chemistry – Some Basic Principles and Techniques

Solution:

$K _2 SO _4$ raises b.pt. and $CuSO _4$ acts as catalyst.