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Which of the following two oxide of nitrogen have 30.5% nitrogen

$\begin{array}{1 1}(a)\;NO&(b)\;NO_2\;and\; N_2O_4\\(c)\;N_2O_2&(d)\;N_2O_5\end{array}$

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% of nitrogen in $NO_2=\large\frac{14}{46}$$\times 100$
$\qquad\qquad\qquad\qquad$=30.5%
% of nitrogen in $N_2O_4=\large\frac{28}{92}$$\times 100$
$\qquad\qquad\qquad\qquad$=30.5%
Hence (b) is the correct answer.
answered Oct 22, 2013 by sreemathi.v
 

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