MCQ
In lanthanide series, the basicity of the lanthanide hydroxides
- AIncreases
- ✓Decreases
- CFirst increases then decreases
- DFirst decrease then increases
✓
Answer
Correct option: B.
Decreases
b
Across the lanthanide series the size of the cations decreases thereby decreasing ionic character and increasing covalent character of hydroxides of lanthanides. Thus, the basicity of hydroxides decreases.
Across the lanthanide series the size of the cations decreases thereby decreasing ionic character and increasing covalent character of hydroxides of lanthanides. Thus, the basicity of hydroxides decreases.
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