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Assertion(A): Fe^(3)+ can be used for co...

Assertion(A): `Fe^(3)+` can be used for coagulation of `As_(2)S_(3)` sol.
Reason (R): `Fe_(3+)` reacts with `As_(2)S_(3)` to give `Fe_(2)S_(3.)`

A

if both Assertion and Reason are true and reason is the correct explanation of the assertion.

B

if both assertion and reason are true but reason is not the correct expalanation of the assertion

C

if assertion is true, reason is false

D

both assertion and reason are false statements.

Text Solution

Verified by Experts

The correct Answer is:
c
When oppositely charged sols are mixed in almost equal proportions, their charges are neutralised. Both sols amy be partially or completely. Precipitated. When negatively charged `As_(2)S_(3)` sol is added to possitively charged `Fe(OH)_(3)` sol, in suitable amounts precipitation of both the sols take place simultenously.
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