Statements : Colloidal silver iondie is sikytuib . Wghen subjected to an electric field the collidal particles migrate to the abnode . Expabnations : Colloidal particles of AgI adorb iodid ions and thus become electrically charged .
A
S is correct but E is wrong .
B
S is worong but E is correct
C
Both S and E are correct and E is correct explanation of (S) .
D
Both S and E are correct but E is not correct explanation of S.
Text Solution
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The correct Answer is:
C
Explanation is correct reason for statement .
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colloidal silver iodies is prepared by adding silver nitrate in slight excess to potassium iodide solution. When subjected to an electric field, the colloidal particles, migrate to the anode. (R) Colloidal particles absorb ions thus become electrically charged.
Assertion: When AgNO_(3) is treated with excess of Kl , colloidal particles gets attracted to wards anode. Reason: Colloidal particles adsorb common ions and thus becomes charged.
Statement-1 :When AgNO_3 is treated with excess of Kl colloidal particles gets attracted towards anode. Statement-2 :Colloidal particles adsorb common ions and thus become charged.
the electrical charge on a colloidal particle is indicated by :
each question constain 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.
The presence of electric charge on colloidal particles is indicated by the property, called :
