Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The correct order of ionic radii of 
and 
is 
At. nos. 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
On going from 
to 
, the ionic radius shrinks from 1.15 
to 0.93 
(lanthanide contraction). The radius of 
is also larger than that of 
ion which lies immediately above it in periodic table.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The manganate and permanganate ions are tetrahedral, due to
Match the catalyst with the process:
Catalyst Process(i) (p) The oxidation of ethyne to ethanal(ii)…
When neutral or faintly alkaline is treated with potassium iodide, iodide ion is converted into ‘ …
Which one of the following ions exhibits d ‐ d transition and paramagnetism as well?
Match the metal ions given in Column ‐ I with the spin magnetic moments of the ions given in Column…
Name the gas that can readily decolourise acidified solution.