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Crystal Field Theory
Quiz 1
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Q.1
What law was the previous question referring to?
Bills law
Chip law
Moores law
Transistor law
Q.2
When the ligands move along the x, y and z axes of d orbital in metal ion (octahedral geometry), they approach directly toward or between the lobes. Name the d orbitals that feel less repulsion?
dz2 and dx2- y2
dxy, dxz and dyz
dz2
dxy and dxz
Q.3
CFT views the interaction between metal ions and ligands in complexes in terms of electrostatic _______________ and ____________________.
attraction, repulsion
positive, negative
cation, anion
Q.4
Write the configuration of d5 in strong field in octahedral complex.
t2g5 eg0
t2g3 eg2
t2g4 eg1
eg3 t2g2
Q.5
The relation between Δt and Δo is
Δt = 49\frac{\text{4}}{\text{9}}94 Δo
Δt = Δo
Δo = 49\frac{4}{9}94 Δt
Δo = Δt
Q.6
Which has a a≠b≠ca\ne b\ne ca=b=c Axial relationship?
Orthorhombic
Rhombohedral
Tetragonal
Cubic
Q.7
Which has an Interaxial Angles of α=γ=90°≠β\alpha=\gamma=90\degree\ne\betaα=γ=90°=β ?
Monoclinic
Triclinic
Hexagonal
None of this
Q.8
Which has an Interaxial Angles of α=β=90°,γ=120°\alpha=\beta=90\degree,\gamma=120\degreeα=β=90°,γ= ?
Monoclinic
Triclinic
Hexagonal
None of this
Q.9
Which has an Interaxial Angles of α=β=γ≠90°\alpha=\beta=\gamma\ne90\degreeα=β=γ= ?
Rhombohedral
Triclinic
Hexagonal
Cubic
Q.10
Minerals can form from other minerals when exposed to
heat & pressure
extreme cold
high humidity
salt water
Q.11
Strong field ligand is which give small splitting energy
true
false
Q.12
The energy diagram of the d orbital energy splitting complexes in octahedral geometry, shows the d orbitals with higher in energy (eg) which refer to _____________ d orbitals
dz2
dxy, dxz and dyz
dz2 and dx2- y2
dxy and dxz
Q.13
Crystal field strength of the ligand is inverse proportional to splitting energy
true
false
Q.14
1 delta is similar toDq
true
false
Q.15
The splitting of orbital energies is called the crystal field effect
True
False
Q.16
The energy diagram of the d orbital energy splitting complexes in tetrahedral geometry, shows the d orbitals with higher in energy (t2g) which refer to _____________ d orbitals
dz2
dxy, dxz and dyz
dz2 and dx2- y2
dxy and dxz
Q.17
Which orbital is very important in CFT?
s
p
d
f
Q.18
1 delta is similar to _____ Dq.
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Q.19
Tetrahedral complexes are
low spin always
high spin always
sometimes low spin
sometimes high spin
Q.20
Grain boundary is
an area where some atomic mismatch within the regionwhere two grains meet
when the periodic and repeated arrangement of atoms is perfect or extends throughout the entirety of the specimen without interruption
number of atoms centered on a plane
crystals having hexagonal symmetry
0 h : 0 m : 1 s
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