JEE CHEMISTRY MCQ: SURFACE CHEMISTRY

1 Medium

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Application +4 | -1

In an experiment, addition of

4.0 \mathrm{~mL}

0.005 \mathrm{\,M}\, {BaCl}_2

to 16.0

\mathrm{mL}

of arsenious sulphide sol just causes complete coagulation in

2 \mathrm{~h}

. The flocculating value of the effective ion is

View answer and explanation

Correct option: A

{Ba}^{2+}, 1.0

Option A (

{Ba}^{2+}, 1.0

) is correct because the flocculating value is determined by the concentration of the effective ion (

{Ba}^{2+}

) required for coagulation.

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