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CUET · CHEMISTRY · PYQ PAPER 2023

Least basic compound among the following would be:

  1. A \(\text{La}(\text{OH})_3\)
  2. B \(\text{Lu}(\text{OH})_3\)
  3. C \(\text{Ce}(\text{OH})_3\)
  4. D \(\text{Gd}(\text{OH})_3\)
Verified Solution

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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