1
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statements :

Statement I : $${[Mn{(CN)_6}]^{3 - }}$$, $${[Fe{(CN)_6}]^{3 - }}$$ and $${[Co{({C_2}{O_4})_3}]^{3 - }}$$ are d2sp3 hybridised.

Statement II : $${[MnCl)_6}{]^{3 - }}$$ and $${[Fe{F_6}]^{3 - }}$$ are paramagnetic and have 4 and 5 unpaired electrons, respectively.

In the light of the above statements, choose the correct answer from the options given below :
A
Statement I is correct but statement II is false
B
Both statement I and Statement II are false
C
Statement I is incorrect but statement II is true
D
Both statement I and statement II are true
2
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The type of hybridisation and magnetic property of the complex [MnCl6]3$$-$$, respectively, are :
A
sp3d2 and diamagnetic
B
d2sp3 and diamagnetic
C
d2sp3 and paramagnetic
D
sp3d2 and paramagnetic
3
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of geometrical isomers found in the metal
complexes [PtCl2(NH3)2], [Ni(CO)4], [Ru(H2O)3Cl3 and [CoCl2(NH3)4]+ respectively, are :
A
1, 1, 1, 1
B
2, 1, 2, 2
C
2, 0, 2, 2
D
2, 1, 2, 1
4
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
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