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K(sp) of AgBr at room temperature is 5 t...

`K_(sp)` of AgBr at room temperature is `5 times 10^(-13)M^(2)`. The quantity of KBr (Mol. mass = 120 g/mol) to be added to 1 litre of a 0.05 M solution of `AgNO_(3)` at room temp. to start the precipitation of AgBr is

A

`1.2 times 10^(-9)g`

B

`6.2 times 10^(-5)g`

C

`1.2 times 10^(-10)g`

D

`5 times 10^(-8)g`

Text Solution

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The correct Answer is:
A
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