1.

Fe^(3+) can be used for coagulation of As_2S_3 sol. (R) Fe^(3+)reacts with As_2 s_3 to give Fe_2S_3.

Answer»

IF both (A) and (R) are correct and (r) is the correct explanation for (a).
If both (a) and (r) are correct but (r) is not the correct explanation for (a).
IF (a) is correct but (r) is incorrect.
If (a) is incorrect but (r) is correct.

ANSWER :C


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