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Arrange the following in increasing orde...

Arrange the following in increasing order of ph:
`KNO_(3)(aq)`,`CH_(3)COONa(aq)`,`NH_(4)CI(aq)`,`C_(6)H_(5)COONH_(4)(aq)`

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`KNO_(3)` (salt of strong acid-strong base), solution is neutral, pH = 7 .
`CH_(3)CO ON a ` (salt of weak acid-strong base), solution is basic , `pH gt 7`
`NH_(4)Cl` (salt of strong acid-weak base), solution is acidic, `pH lt 7`
`C_(6)H_(5)CO ONH_(4)` (both weak but `NH_(4)OH` is slightly stronger than `C_(6)H_(5)CO OH`), pH close to 7 but slightly `gt 7`.
Hence, in order of pH , `NH_(4)Cl lt C_(6)H_(5) CO ONH_(4) gt KNO_(3) ltCH_(3)CO ON a`.
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