On adding \( \mathrm{AgNO}_{3} \) solution into \( \mathrm{KI} \) solution, a negatively charged...

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On adding \( \mathrm{AgNO}_{3} \) solution into \( \mathrm{KI} \) solution, a negatively charged colloidal sol is obtained when
P they are mixed as :

WV
(1) \( 100 \mathrm{~mL} \) of \( 0.1 \mathrm{M} \mathrm{AgNO}_{3}+100 \mathrm{~mL} \) of \( 0.1 \mathrm{M} \mathrm{KI} \)
(2) \( 100 \mathrm{~mL} \) of \( 0.1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL} \) of \( 0.2 \mathrm{M} \mathrm{KI} \)
(3) \( 200 \mathrm{~mL} \) of \( 0.1 \mathrm{M} \mathrm{AgNO}_{3}+200 \mathrm{~mL} \) of \( 0.1 \mathrm{MKI} \)
(4) \( 100 \mathrm{~mL} \) of \( 0.1 \mathrm{M} \mathrm{AgNO}_{3}+100 \mathrm{~mL} \) of \( 0.15 \mathrm{M} \mathrm{KI} \)
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