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Q)

Which of the following reactions shows the formation of positively / negatively charged sol correctly?


(a) $FeCl_3 + H_2O(excess) \longrightarrow Fe_2O_3.xH_2O | H^+$
(b) $FeCl_3 + H_2O(excess) \longrightarrow Fe_2O_3.xH_2O | Fe^{3+}$
(c) $FeCl_3 + NaOH(aq) \longrightarrow Fe_2O_3.xH_2O | Fe^{3+}$
(d) $FeCl_3 + NaOH(aq) \longrightarrow Fe_2O_3.xH_2O | OH^+$

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