1
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The isomer(s) of [Co(NH3)4Cl2] that has/have a Cl–Co–Cl angle of 90°, is/are :
A
cis only
B
cis and trans
C
meridional and trans
D
trans only
2
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
[Pd(F)(Cl)(Br)(I)]2– has n number of geometrical isomers. Then, the spin-only magnetic moment and crystal field stabilisation energy [CFSE] of [Fe(CN)6]n–6, respectively, are:
[Note : Ignore the pairing energy]
A
1.73 BM and –2.0 $$\Delta $$0
B
5.92 BM and 0
C
2.84 BM and –1.6 $$\Delta $$0
D
0 BM and –2.4 $$\Delta $$0
3
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Complex X of composition Cr(H2O)6Cln has a spin only magnetic moment of 3.83 BM. It reacts with AgNO3 and shows geometrical isomerism. The IUPAC nomenclature of X is :
A
Hexaaqua chromium (III) chloride
B
Tetraaquadichlorido chromium(IV) chloride dihydrate
C
Tetraaquadichlorido chromium (III) chloride dihydrate
D
Dichloridotetraaqua chromium (IV) chloride dihydrate
4
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among (a) – (d) the complexes that can display geometrical isomerism are :
(a) [Pt(NH3)3Cl]+
(b) [Pt(NH3)Cl5]
(c) [Pt(NH3)2Cl(NO2)]
(d) [Pt(NH3)4ClBr]2+
A
(a) and (b)
B
(c) and (d)
C
(d) and (a)
D
(b) and (c)
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