1.

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).

Answer»

If both assertion and reason are ture, and reason is the trure explanation of the assertion.
If both assertion and reason are true, but reason is not the true explanation of the assertion.
If assertion is true, but reason is false.
If both assertion and reason false.

Solution :CORRECT R.`Fe^(3+)` neutralize the CHARGE on the negatively charged `As_(2)S_(3)` PARTICLES.


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