1.

When equal volume of the following solutions are mixed, precipitation of AgCl (K_(sp)=1.8xx10^(-10)) will occur only with :

Answer»

`10^(-3)M Ag^(+)` and `10^(-5)M Cl^(-)`
`10^(-5)M Ag^(+)` and `10^(-5)M Cl^(-)`
`10^(-6)M Ag^(+)`and`10^(-5)M Cl^(-)`
`10^(-4)M Ag^(+)` and `10^(-4)M Cl^(-)`

Solution :Ionic product`=[Ag^(+)][Cl^(-)]`
`=(10^(-4))/(2)xx(10^(-4))/(2)=2.5xx10^(-9)`
Since ionic product is greater than solubility product PRECIPITION will take PLACE.


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