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Consider the following species: CF(4),Ge...

Consider the following species: `CF_(4),GeH_(4),BCl_(3),AlBr_(3),H_(2)O,PH_(3),PCl_(5),CO_(2),CH_(4) and ` calculate value of `(x-y)^(2)`:
Where, x: Total number of species which can act as only lewis acid.
y: total number of species which can act as lewis acid as well as lewis base.

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The correct Answer is:
16
`x=GeH_(4),BCl_(3),AlBr_(3),PCl_(5),CO_(2),y=PH_(3),(5-1)^(2)=16`
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