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Q.

0.2 gm of an organic compound was analysed by Kjeldahl method.  Ammonia evolved was absorbed in  60 ml of N/5  H2SO4.  Unused acid required 40 ml of N/10 NaOH for complete neutralisation.  The percentage of nitrogen in the compound is 

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a

65

b

10

c

56

d

46

answer is B.

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Detailed Solution

% N=1.4(15×60110×40)0.2=56

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