A) \[{{N}_{2}}\]
B) \[~N{{H}_{3}}\]
C) \[~N{{O}_{2}}\]
D) none of these
Correct Answer: B
Solution :
The Kjeldahl's method is based on the fact that nitrogen of an organic compound is quantitatively convened to \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\] on heating with \[{{H}_{2}}S{{O}_{4}}\](cone.). The\[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]is then treated with KOH to liberate\[N{{H}_{3}},\]which is absorbed in \[{{H}_{2}}S{{O}_{4}}\]to obtain % of N.
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