1.

Which of the following reaction does not take place

Answer»

`CuSO_(4)+ZnrarrZnSO_(4)+Cu`
`HeCl_(2)+FerarrFeCl_(2)+HG`
`NaH+H_(2)OrarrNaOH+H_(2)`
`Na_(2)SO_(3)+CO_(2)rarrNa_(2)CO_(3)+SO_(2)`

Solution :More acidic oxide displaced less acidic oxide.


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