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Calculating Oxidation Number

A compound co...

Question

A compound contains atoms X, Y, Z. the oxidation numbers of X is 2 , Y is 5 and Z is -2. The possible formula of the compound is?

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Solution

$T h e f o r m u l a s h o u l d b e n e u t r a l .$
$I t m e a n s -$
$t o t a l c a t i o n c h a r g e = t o t a l a n i o n i c c h a r g e$

$2 + 5 = 2 x$
$x = \frac{7}{2}$
The formula becomes
$X Y Z_{\frac{7}{2}}$

Simplifying it-
Final formula becomes- $X_{2} Y_{2} Z_{7}$

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