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In III group precipitation NH(4)CI is ad...

In III group precipitation `NH_(4)CI` is added before adding `NH_(4)OH` due to

A

decrease conc. of `OH^(-)`

B

prevent interference of `PO_(4)^(-3)`

C

increase conc. of `CI^(-)`

D

increase conc. of `OH^(-)` ions.

Text Solution

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The correct Answer is:
A
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