CUET · CHEMISTRY · PYQ PAPER 2023
Which of the following is not correct?
A. \(La(OH)_3\) is less basic than \(Lu(OH)_3\)
B. In Lanthanoid series, ionic radius of \(M^{3+}\) ion decreases from \(La\) to \(Lu\).
C. \(La\) is an element of transition series rather than a Lanthanoid series.
D. Atomic radii of \(Zr\) and \(Hf\) are the same because of Lanthanoid contraction.
Choose the correct answer from the options given below:
- A B and C only
- B C and A only
- C A only
- D D and B only
Answer & Solution
Correct Answer
(C) A only
Step-by-step Solution
Detailed explanation
\(La(OH)_3\) is more basic than \(Lu(OH)_3\). A is not correct. A only
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