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Chemistry · 2020
JEE Main · 7 January 2020, Shift 2 · Q48
The flocculation value of HCl for arsenic sulphide sol. is 30 m mol L^-1. If H_2 SO_4 is used for the flocculation of arsenic sulphide, the amount,…
The flocculation value of HCl for arsenic sulphide sol. is $\displaystyle 30 \mathrm{~m} \mathrm{~mol} \mathrm{~L}^{-1}$. If $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$ is used for the flocculation of arsenic sulphide, the amount, in grams, of $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$ in $\displaystyle 250$ ml required for the above purpose is
\_\_\_\_.
(molecular mass of $\displaystyle \mathrm{H}_2 \mathrm{SO}_4=98 \mathrm{~g} / \mathrm{mol}$ )
Official answer
0.37 ± 0.01
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.