1.

Identify correct order of pH of the given solutions at 25^(@)C (I) NH_(4)Cl "" (II) Na_(2)CO_(3) "" (III) K_(2)SO_(4)

Answer»

`I LT II lt III`
`I lt III lt II`
`II lt I lt III`
`II lt III lt I`

Solution :`NH_(4)Cl rarr` salt of S.A/W.B `(pH lt 7)`
`Na_(2)CO_(3) rarr` salt of W.A/S.B `(pH GT 7)`
`K_(2)SO_(4) rarr` salt of S.A/S.B (pH= 7)


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