each question contain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below : STATEMENT-1: Colloidal Agl is prepared by adding Kl in slight excess to `AgNO_(3)` solution, the and particles migrate toward cathode under electric field. STATEMENT-2: Colloidal particles adsorb ions and thus becomes electrically neutral.
A
By adding little excess of `Kl` to `AgNO_(3)` solution
B
By adding little excess of `AgNO_(3)` to `Kl` solution
C
By mixing equal volumes of `0.010M AgNO_(3)` and `0.010 MKI`
D
Convection current
Text Solution
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The correct Answer is:
2
We want to prepare sol of `AgI` having positively charged particles, so a little excess of `Ag^(+)` should be added to `KI`.
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