A reddish brown sol is obtained by adding small quantity of \[FeC{{l}_{3}}\]solution to freshly prepared and well washed \[Fe{{(OH)}_{3}}\] ppt. fixed layer and mobile layer are represented as

\[\left[ FeC{{l}_{3}} \right]F{{e}^{3+}}\] \[3O{{H}^{-}}\]

\[\left[ FeC{{l}_{3}} \right]F{{e}^{3+}}\] \[O{{H}^{-}}\]

\[\left[ Fe{{(OH)}_{3}} \right]F{{e}^{3+}}\] \[C{{I}^{-}}\]

\[\left[ Fe{{(OH)}_{3}} \right]F{{e}^{3+}}\] \[3C{{I}^{-}}\]

A reddish brown sol is obtained by adding small quantity of \[FeC{{l}_

1.	A reddish brown sol is obtained by adding small quantity of \[FeC{{l}_{3}}\]solution to freshly prepared and well washed \[Fe{{(OH)}_{3}}\] ppt. fixed layer and mobile layer are represented as
A.	\[\left[ FeC{{l}_{3}} \right]F{{e}^{3+}}\] \[O{{H}^{-}}\]
B.	\[\left[ Fe{{(OH)}_{3}} \right]F{{e}^{3+}}\] \[C{{I}^{-}}\]
C.	\[\left[ Fe{{(OH)}_{3}} \right]F{{e}^{3+}}\] \[3C{{I}^{-}}\]
D.	\[\left[ FeC{{l}_{3}} \right]F{{e}^{3+}}\] \[3O{{H}^{-}}\]
Answer» D. \[\left[ FeC{{l}_{3}} \right]F{{e}^{3+}}\] \[3O{{H}^{-}}\]

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A reddish brown sol is obtained by adding small quantity of \[FeC{{l}_{3}}\]solution to freshly prepared and well washed \[Fe{{(OH)}_{3}}\] ppt. fixed layer and mobile layer are represented as

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