A) \[C{{u}^{+}},\,\,Z{{n}^{2+}},\,\,C{{a}^{2+}}\]
B) \[S{{c}^{3+}},\,\,T{{i}^{4+}},\,\,{{V}^{5+}}\]
C) \[C{{u}^{2+}},\,\,C{{r}^{+}},\,\,M{{n}^{2+}}\]
D) \[N{{i}^{2+}},\,\,C{{u}^{+}},\,\,H{{g}^{2+}}\]
Correct Answer: C
Solution :
Ion is coloured if there are electrons in d suborbit. Paramagnetic nature is also due to unpaired electrons. Thus, every coloured ion is also paramagnetic. \[C{{u}^{2+}}=[Ar]3{{d}^{9}}\], one unpaired electron in\[3d\]. \[C{{r}^{+}}=[Ar]3{{d}^{5}}\], five unpaired electrons in\[3d\]. \[M{{n}^{2+}}=[Ar]3{{d}^{5}}\]five unpaired electrons in\[3d\].
You need to login to perform this action.
You will be redirected in
3 sec
