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Some chemists at wished to perpare a sat...

Some chemists at wished to perpare a saturated solution of a silver compound and they wanted it to have the highest concentration of silver ion possible. Which of the following compound would they use ?
`K_(sp) (AgCI) = 1.8 xx 10^(-10), K_(sp) (AgBr) = 5.0 xx 10^(-13)`,
`K_(sp) (Ag_(2)CrO_(4)) = 2.4 xx 10^(-12) ["Use" 3sqrt(0.6) = 0.84]`

A

Precipitation does not occur

B

Silver chromate gets precipitated first

C

Silver chloride gets precipitated

D

Both silver chromate and silver chloride start, precipitating simultaneously

Text Solution

Verified by Experts

The correct Answer is:
C
`(Ag_(2)CrO_(4))`=`(10^(-4))^(2)xx10^(-5)`=`10^(-13)(lt K_(sp), Ag_(2)CrO_(4))`
Do not precipitate
I.P. of `AgCl=10^(-4)xx10^(-5)` = `10^(-19)(gt K_9sp), AgCl)`
AgCl is precipitated
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