1
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the statements(a)-(d) the incorrect ones are :
(a) Octahedral CO(III) complexes with strong fields ligands have very high magnetic moments.
(b) When $$\Delta $$0 < P, the d-electron configuration of Co(III) in an octahedral complex is $$t_{eg}^4e_g^2$$
(c) Wavelength of light absorbed by [Co(en)3]3+ is lower than that of [CoF6]3-
(d) If the $$\Delta $$0 for an octahedral complex of CO(III) is 18,000 cm-1, the $$\Delta $$t for its tetrahedral complex with the same ligand be 16,000 cm-1
A
(a) and (b) only
B
(b) and (c) only
C
(c) and (d) only
D
(a) and (d) only
2
JEE Main 2020 (Online) 7th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The theory that can completely/properly explain the nature of bonding in [Ni(Co)4] is :
A
Wemer's theory
B
Valence bond theory
C
Crystal field theory
D
Molecular orbital theory
3
JEE Main 2020 (Online) 7th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The IUPAC name of complex [Pt(NH3)2Cl(NH2CH3)]Cl is:
A
Diamminechlorido (methanamine) platinum(II)chloride.
B
Biasmmine (methanamine)chlorido platinum(II)chloride.
C
Diamminechlorido (amminomethane) platinum(II) chloride.
D
Diammine (methanamine) chlorido platinum(II)Chloride.
4
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The coordination numbers of Co and Al in [Co(Cl)(en)2]Cl and K3[Al(C2O4)3], respectively, are : (en = ethane-1, 2-diamine)
A
3 and 3
B
6 and 6
C
5 and 3
D
5 and 6
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