1
JEE Advanced 2021 Paper 1 Online
MCQ (Single Correct Answer)
+3
-1
Change Language
The calculated spin only magnetic moments of [ Cr(NH3)6]3+ and [CuF6]3$$-$$ in BM, respectively, are

(Atomic numbers of Cr and Cu are 24 and 29, respectively)
A
3.87 and 2.84
B
4.90 and 1.73
C
3.87 and 1.73
D
4.90 and 2.84
2
JEE Advanced 2018 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0.75
Change Language
Match each set of hybrid orbitals from LIST - A with complex(es) given in LIST - B

List - A List - B
P. dsp2 1. [FeF6]4-
Q. sp3 2. [Ti(H2O)3Cl3]
R. sp3d2 3. [Cr(NH3)6]3+
S. d2sp3 4. [FeCl4]2-
5. Ni(CO)4
6. [Ni(CN)4]2-

The correct option is
A
$$P - 5;Q - 4,6;R - 2,3;S - 1$$
B
$$P - 5,6;Q - 4;R - 3;S - 1,2$$
C
$$P - 6;Q - 4,5;R - 1;S - 2,3$$
D
$$P - 4,6;Q - 5,6;R - 1,2;S - 3$$
3
JEE Advanced 2016 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
Change Language
The geometries of the ammonia complexes of Ni2+, Pt2+ and Zn2+, respectively, are
A
octahedral, square planar and tetrahedral
B
square planar, octahedral and tetrahedral
C
tetrahedral, square planar and octahedral
D
octahedral, tetrahedral and square planar
4
JEE Advanced 2016 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
Change Language

Among [Ni(CO)4], [NiCl4]2$$-$$, [Co(NH3)4)Cl2]Cl, Na3[CoF6], Na2O2 and CsO2, the total number of paramagnetic compound is

A
2
B
3
C
4
D
5
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