A) \[C{{r}^{+++}}\] and \[F{{e}^{++}}\]
B) \[T{{i}^{+++}}\] and \[{{V}^{++}}\]
C) \[F{{e}^{+++}}\] and \[M{{n}^{++}}\]
D) \[C{{u}^{+}}\] and \[N{{i}^{++}}\]
Correct Answer: A
Solution :
\[C{{r}^{+++}}\] ® green \[F{{e}^{+++}}\] ® Pale-green
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