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In a electrical field, the particles of ...

In a electrical field, the particles of a colloidal system move towards cathode. The coagulation of the same sol is studied using `K_2SO_4(I)`,Na_3PO_4(II)`,(K_4[Fe(CN)_6]`(III) and NaCI (IV). Their coagualating power should be :

A

`(I)gt(II)gt(III)gt(IV)`

B

`(III)gt(II)gt(I)gt(IV)`

C

`(III)gt(I)gt(II)gt(IV)`

D

`(IV)gt(III)gt(I)gt(II)`

Text Solution

Verified by Experts

The correct Answer is:
B
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Under the influemce of an electric field, the particles in a sol migrate towards cathode. The coagulation of the same sol is studied using NaCl,Na_(2)SO_(4) , and Na_(3)PO_(4) solutions. Their coagulation values will in the order a. NaClgtNa_(2)SO_(4)gtNa_(3)PO_(4) b. Na_(2)SO_(4)gtNa_(3)PO_(4)gtNaCl c. Na_(3)PO_(4)gtNa_(2)SO_(4)gtNaCl d. Na_(2)SO_(4)gtNaClgtNa_(3)PO_(4)

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