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JEE Main Chemistry Class 12 The D and F Block Elements Part 2 Questions
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© examsnet.com
Question : 11
Total: 111
Among
CrO
,
Cr
2
O
3
and
CrO
3
, the sum of spin-only magnetic moment values of basic and amphoteric oxides is ______
10
−
2
BM
(nearest integer).
(Given atomic number of
Cr
is 24 )
[6 Apr 2024 Shift 1]
Your Answer:
Validate
Solution:
CrO Basic oxide
Cr
2
O
3
Amphoteric oxide
In
CrO
,
Cr
exist as
Cr
+
2
and have
µ
only
=
4.90
In
Cr
2
O
3
,
Cr
exist as
Cr
+
3
and have
µ
only
=
3.87
Sum of spin only magnetic moment
=
4.90
+
3.87
=
8.77
µ
only
=
877
×
10
−
2
Ans. 877
© examsnet.com
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