MCQ
In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group $IV$ in qualitative inorganic analysis?
- ✓$Fe ^{3+}$
- B$Zn ^{2+}$
- C$CO ^{2+}$
- D$Ni ^{2+}$
✓
Answer
Correct option: A.
$Fe ^{3+}$
a
$Zn ^{2+}, Co ^{2+}, Ni ^{2+}= IV ^{\text {th }} \text { Group }$
$Zn ^{2+}, Co ^{2+}, Ni ^{2+}= IV ^{\text {th }} \text { Group }$
$Fe ^{3+}= III ^{ rd } \text { Group }$
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