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A gas is found to have formula $[CO]_x$.If its vapour density is 70 then the value of x is

$\begin{array}{1 1}(a)\;5.0&(b)\;3.0\\(c)\;2.5&(d)\;6.0\end{array} $

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1 Answer

Mol.wt=2$\times $ vapour density
$\Rightarrow 2\times 70=140$
Now mol.mass of $[CO]_x$ is $(12+16)x=28x$
$\therefore 28x=140$
$\Rightarrow x=5$
Hence (a) is the correct answer.
answered Mar 25, 2014 by sreemathi.v 1 flag
Thanxzz men u r great
 

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