Test: Stability of complex ion, Crystal Field Theory - JEE MCQ
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20 Questions MCQ Test - Test: Stability of complex ion, Crystal Field Theory
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, find the value of 
?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 1
has zero oxidation state, as has zero oxidation state in the compound.
is 
has 6 valencies, as 
in this state is stable due to half-filled orbitals. Now, for 6 valencies, 
is required. Therefore, 
The compound is 
.
Test: Stability of complex ion, Crystal Field Theory - Question 2
Statement Type
Direction (Q. No. 25) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.
Q.
Statement I : Mn(π— C3H5)(CO)4, obey effective atomic number rule.
Statement II : π-allyl ligand act as a 3e- donor.
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 2
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*Answer can only contain numeric values
Test: Stability of complex ion, Crystal Field Theory - Question 3
In Mn2(CO)10, the number of CO molecules in between the metal atoms are
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 3
Test: Stability of complex ion, Crystal Field Theory - Question 4
The correct order for wavelengths of absorption in the visible region for the following complexes will be
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 4
,
and (III) 
are made of 
and ligands 
and 
respectively. The field strength order of the ligands is
or 
Test: Stability of complex ion, Crystal Field Theory - Question 5
Which will give a white precipitate with 
in aqueous solution
in aqueous solution
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 5
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 6
, larger the stability
that exists in solution.
Test: Stability of complex ion, Crystal Field Theory - Question 7
Amongst 
and 
, which are the colourless species?
(atomic number of Ti = 22, Co = 27, Cu = 29, Ni = 28)
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 7
and 
and 
Test: Stability of complex ion, Crystal Field Theory - Question 8
InFe(CO)s, the Fe-C bond possesses
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 8
metal to ligand back bonding in Fe-C bond of the organometallic compound
So it possesses both 
and 
characters.
Test: Stability of complex ion, Crystal Field Theory - Question 9
The crystal field splitting energy for octahedral 
and tetrahedral 
complexes is related as
and tetrahedral complexes is related as
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 9
Test: Stability of complex ion, Crystal Field Theory - Question 10
Calculate the magnetic moment of 
ion 
.
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 10
Test: Stability of complex ion, Crystal Field Theory - Question 11
For octahedral complex, which of the following 
configurations of metal cation cannot exist in high spin and low spin forms?
configurations of metal cation cannot exist in high spin and low spin forms?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 11
and 
octahedral complexes number of unpaired 
at central metal atom/ion never changes, therefore for such octahedral complexes terms high spin and low spin not used.
Test: Stability of complex ion, Crystal Field Theory - Question 12
Which of the following complex ions has electrons that are symmetrically filled in both 
and 
orbitals ?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 12
Test: Stability of complex ion, Crystal Field Theory - Question 13
Which of the following statements related to crystal field splitting in octahedral coordination entities is incorrect?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 13
is a strong field ligand and form low spin complexes thus 
Test: Stability of complex ion, Crystal Field Theory - Question 14
Among the following species the one which causes the highest 
as a ligand is:
as a ligand is:
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 14
for the ligands. 
Test: Stability of complex ion, Crystal Field Theory - Question 15
The increasing order of crystal field splitting strength of the given ligands is
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 15
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 16
Hybridization 
High or
is an example of 
system of configuration.
Test: Stability of complex ion, Crystal Field Theory - Question 17
Which of the following carbonyls will have the strongest 
bond ?
bond ?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 17
orbitals of CO ligand (donation of electron density into 
orbitals of 
result in weakening of 
bond ). Hence, the 
bond would be strongest in 
Test: Stability of complex ion, Crystal Field Theory - Question 18
Which of the following does not have a metal carbon bond?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 18
Test: Stability of complex ion, Crystal Field Theory - Question 19
If the crystal field splitting energy of a tetrahedral complex 
of the type 
is 
, what is the crystal field splitting energy with respect to an octahedral complex, 
?
of the type is , what is the crystal field splitting energy with respect to an octahedral complex, ?
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 19
of 
is 
, the CFSE of octahedral complex 
will be 
.
Test: Stability of complex ion, Crystal Field Theory - Question 20
The 
for 
complex is 
. The 
for 
will be:
for complex is . The for will be:
Detailed Solution for Test: Stability of complex ion, Crystal Field Theory - Question 20
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