A) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}\]
B) pyridine
C) \[{{C}_{6}}{{H}_{5}}-N=N-{{C}_{6}}{{H}_{5}}\]
D) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
Correct Answer: D
Solution :
In nitro and \[\text{azo}\] compounds or cyclic compounds (in which nitrogen is a part of ring), nitrogen is not completely converted into \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\] during digestion. Thus, Kjeldahl's method does not work for such compounds.You need to login to perform this action.
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