A) \[SnC{{l}_{2}}\] is added
B) Zn is added
C) \[{{H}_{2}}S\] gas is passed
D) all of these
Correct Answer: D
Solution :
Yellow coloured solution of \[FeC{{l}_{3}}\] is turned green due to the reduction of it. (i.e., conversion into\[F{{e}^{2+}}\]). \[SnC{{l}_{2}}\]and\[{{H}_{2}}S\] are reducing agent and Zn is more electropositive than Fe, hence, all of them turn yellow \[FeC{{l}_{3}}\] solution into green \[F{{e}^{2+}}\]solution.You need to login to perform this action.
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