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

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

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false

Text Solution

Verified by Experts

The correct Answer is:
C

Because `As_(2)S_(3)` negatively charged hence positively charged `Fe^(3+)` coagulates it.
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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.)

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