Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: \[F{{e}^{2+}}\] can be used for coagulation of \[A{{s}_{2}}{{S}_{3}}\] sol. Reason: \[F{{e}^{3+}}\] reacts with \[A{{s}_{2}}{{S}_{3}}\] to give\[F{{e}_{2}}{{S}_{3}}\].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 the reason is not the correct explanation of the assertion.
C) If assertion is true statement but reason is false.
D) If both assertion and reason are false.
Correct Answer: B
Solution :
\[F{{e}^{3+}}\] can be used for coagulation of \[A{{s}_{2}}{{S}_{3}}\] sol because \[A{{s}_{2}}{{S}_{3}}\] is negatively charged and hence, it coagulated by \[F{{e}^{3+}}\] which are positively charged.
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