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Class 12 NEET Chemistry D And F Block Elements Questions
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Question : 86
Total: 108
Which one of the following ionic species will impart colour to an aqueous solution?
(1998)
Zn
2
+
Cu
+
Ti
4
+
Cr
3
+
Validate
Solution:
C
r
3
+
(
21
)
→
1
s
2
,
2
s
2
,
2
p
6
,
3
s
2
,
3
p
6
,
3
d
3
As
Cr
3
+
ion has three unpaired electrons in its valence shell, so it imparts green colour to an aqueous solution.
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