Q.

Amongst the following Kjeldahl’s method can’t be used for

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a

a,b,d,e,c 

b

abdefh      

c

abcdej

d

abcde        

answer is B.

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Detailed Solution

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Kjeldahl’s method is not applicable to compounds containing nitrogen in nitro and azo groups, ‘N’ present in the ring

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as ‘N’ of these compounds does not change to NH42SO4.

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