D-And F-Block Elements Ques 113
Question: $ {{
[Sc{{(H_2O)}_6}]}^{3+}} $ ion is [Pb. CET 2004]
Options:
A) Colourless and diamagnetic
B) Coloured and octahedral
C) Colourless and paramagnetic
D) Coloured and paramagnetic
Show Answer
Answer:
Correct Answer: A
Solution:
$ _{21}Sc=[Ar]\ 3d^{1}4s^{2} $ $ S{{c}^{3+}}=[Ar]\ 3d^{0}4s^{0} $ no unpaired electrons in d sub shell, so it is diamagnetic and colourless.
