A compound contains X,Y AND Z atoms .the oxidation states of X , Y AND Z are +2 ,+2 and -2 respectively. the possible formula of the compound is a) XYZ2 b) X3(Y4Z)2

Dear Student,

X, Y and Z forms a neutral compound. So sum of oxidation number of X, Y and Z should be equal to the zero.

Oxidation number of X, Y and Z are +2 , +2, -2 respectively.

a) XYZ2
​​sum of oxidation number of X, Y and Z in XYZ2
(+2 ) + (+2) +2(-2) = 0
4 -4 = 0
0 =0 

So, XYZis the correct formula.

b) X3(Y4Z)2
sum of oxidation number of X, Y and Z in X3(Y4Z)2
3(+2) + 2(4(+2)+(-2))=0
6 +2(8-2) =0
18 = 0
Since LHS is not equal to RHS so the formula X3(Y4Z)is incorrect.

Regards
 

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idk
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The possible chemical formula for this compound is a ) X Y Z 2 since the compound may certainly be a neutral one ( only assumed )  so, it carries no charge In this formula , we observe that all the charges get neutralised ( + 2 + 2 + 2 ( - 2 ) ) = 0 
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