Q.

0.66g of a compound gave 112ml of nitrogen measured at STP in the Dumas method. The percentage of nitrogen in the compound is

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a

42.4

b

25

c

21.2

d

41.5

answer is D.

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Detailed Solution

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%of N =2822400×V of N2 in mlWO.C×100

%of N =2822400×1120.66×100

 

%of N =313614784×100  

%of N =313614784×100   

 

% of N = 21.21

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