JEE Main 08 Apr 2018 Code A Solved Paper

Section: Chemistry

Question : 38 of 90

Marks: +1, -0

An aqueous solution contains unknown concentration Ba2+ .When 50 mL of a 1M solution Na2SO4 is added, BaSO4 just ust begins to precipitate. The final volume is 500 mL.The solubility product of BaSO4 is 1×10−10. . What is the original concentration of Ba2+ ?

[Main 8 April 2018]

5×10−9M
2×10−9M
1.1×10−9M
1.0×10−10M

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