Q. Mark the incorrect statement in nitrogen Kjeldahl's method of estimation
A) Nitrogen gas is collected over caustic potash solution
B) Potassium sulphate is used as boiling point elevator of $H_{2}SO_{4}$
C) Copper sulphate or mercury acts as a catalyst
D) Nitrogen is quantitatively decomposed to give ammonium sulphate
Explanation
(a)
In case of kjeldahl's method the percentage of $N_{2}$ is then calculated from the amount of $NH_{3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.