MCQ
Which of the following elements can present both in cation and anion of its salts?
- A$B$
- ✓$Al$
- C$Ga$
- D$Tl$
✓
Answer
Correct option: B.
$Al$
Boron can only form cation of its salts.
$Al$ can form both cation and anion of its salts.
Example: $\mathrm{Al}^3+ ($cation$) \mathrm{AlO}_3{ }^{3-} ($Anion$)$
$Ga$ and $Tl$ can only form cation of their salts.
$Al$ can form both cation and anion of its salts.
Example: $\mathrm{Al}^3+ ($cation$) \mathrm{AlO}_3{ }^{3-} ($Anion$)$
$Ga$ and $Tl$ can only form cation of their salts.
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