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An amount of 0.1 millimole of \( \mathrm{CdSO}_{4} \) is present in
\( \mathrm{P} \) \( 10 \mathrm{ml} \) acid solution of \( 0.08 \mathrm{M}-\mathrm{HCl} \). Now \( \mathrm{H}_{2} \mathrm{~S} \) is

W passed to precipitate all the \( \mathrm{Cd}^{2+} \) ions. What would be the \( \mathrm{pH} \) of solution after filtering off precipitate, boiling off \( \mathrm{H}_{2} \mathrm{~S} \) and making the solution \( 100 \mathrm{ml} \) by adding water?
(1) 3.0
(2) 2.0
(3) 4.0
(4) 2.22
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