CUET · CHEMISTRY · PYQ PAPER 2023
Least basic compound among the following would be:
- A \(\text{La}(\text{OH})_3\)
- B \(\text{Lu}(\text{OH})_3\)
- C \(\text{Ce}(\text{OH})_3\)
- D \(\text{Gd}(\text{OH})_3\)
Answer & Solution
Correct Answer
(B) \(\text{Lu}(\text{OH})_3\)
Step-by-step Solution
Detailed explanation
Basicity of lanthanide hydroxides decreases across the period from La to Lu due to lanthanide contraction. \(\text{Lu}(\text{OH})_3\)
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