The Kjeldahl's method for the estimation of n | vedclass

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(B) The Kjeldahl's method is not applicable to compounds containing nitrogen in nitro $(-NO_2)$ or azo $(-N=N-)$ groups,or nitrogen present in a ring

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(B) The Kjeldahl's method is not applicable to compounds containing nitrogen in nitro $(-NO_2)$ or azo $(-N=N-)$ groups,or nitrogen present in a ring (like pyridine),because the nitrogen in these compounds is not quantitatively converted to ammonium sulphate under the conditions of the Kjeldahl's method.Among the given options:$A$. Nitrobenzene contains a nitro group.$B$. Aniline $(C_6H_5NH_2)$ contains an amino group,which is easily converted to ammonium sulphate.$C$. Azobenzene contains an azo group.$D$. Pyridine contains nitrogen in the ring.Therefore,the Kjeldahl's method can be used for Aniline.

The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?

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