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1
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following metal complexes is most stable?
A
[Co(en)(NH3)4]Cl2
B
[Co(en)3]Cl2
C
[Co(en)2(NH3)2]Cl2
D
[Co(NH3)6]Cl2
2
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following species responds to an external magnetic field?
A
[Fe(H2O)6]3+
B
[Ni(CN)4]2$$-$$
C
[Co(CN)6]3$$-$$
D
[Ni(CO)4]
3
JEE Main 2021 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Spin only magnetic moment of an octahedral complex of Fe2+ in the presence of a strong field ligand in BM is :
A
4.89
B
2.82
C
0
D
3.46
4
JEE Main 2021 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following species doesn't have a magnetic moment of 1.73 BM, (spin only value)?
A
O$$_2^ + $$
B
CuI
C
[Cu(NH3)4]Cl2
D
O$$_2^ - $$
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