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Kjeldhal's method cannot be used for the...

Kjeldhal's method cannot be used for the estimation of nitrogen is

A

`C_6H_5NO_2`

B

`C_6H_5NHCOCH_3`

C

`C_6H_5-N=N-C_6H_5`

D

Pyridine .

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Nitrogen present in nitro and diazo compounds is not quantitatively converted into ammonium sulphate by Kjeldahl's method.
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