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An sample of NaCl with 50% purity is add...

An sample of NaCl with 50% purity is added into aqueous solution havinig excess `AgNO_(3)`. AgCl precipitate is filtered, washed and dired weighing 2.87gm. If the reaction yeild is 20%, then find the amount of sample.

A

23.4gm

B

11.7gm

C

20gm

D

12.8gm

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The correct Answer is:
B
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