The pair(s) of complexes wherein both exhibit tetrahedral geometry is(are)
(Note : py = pyridine)
Given : Atomic numbers of Fe, Co, Ni and Cu are 26, 27, 28 and 29, respectively)
A
[FeCl4]$$-$$ and [Fe(CO)4]2$$-$$
B
[Co(CO)4]$$-$$ and [CoCl4]2$$-$$
C
[Ni(CO)4] and [Ni(CN)4]2$$-$$
D
[Cu(py)4]+ and [Cu(CN)4]3$$-$$
2
JEE Advanced 2020 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
In an experiment, m grams of a compound X (gas/liquid/solid) taken in a container is loaded in a balance as shown in figure I below.
In the presence of a magnetic field, the pan with X is either deflected upwards (figure II), or deflected downwards (figure III), depending on the compound X. Identify the correct statement(s).
A
If X is H2O(l), deflection of the pan is upwards
B
If X is K4[Fe(CN)6](s), deflection of the pan is upwards.
C
If X is O2(g), deflection of the pan is downwards.
D
If X is C6H6(l), deflection of the pan is downwards
3
JEE Advanced 2020 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
Choose the correct statement(s) among the following :
A
[FeCl4]$$-$$ has tetrahedral geometry.
B
[Co(en)(NH3)2Cl2]+ has 2 geometrical isomers.
C
[FeCl4]$$-$$ has higher spin-only magnetic moment than [Co(en)(NH3)2Cl2]+.
D
The cobalt ion in [Co(en)(NH3)2Cl2]+ has sp3d2 hybridisation.
