MCQ
What is the net charge on ferrous ion
- ✓$+2$
- B$+3$
- C$+4$
- D$+5$
✓
Answer
Correct option: A.
$+2$
(a) $_{26}Fe\xrightarrow{{}}[Ar]\,3{{d}^{6}}4{{s}^{2}}$
$F{{e}^{++}}\xrightarrow{{}}\,[Ar]\,3{{d}^{6}}\,4{{s}^{0}}$
$F{{e}^{+++}}\xrightarrow{{}}\,[Ar]\,3{{d}^{5}}4{{s}^{0}}$
In $ +2 $ state $Fe$ is called Ferrous & in $+3$ state as ferric.
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