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CFT

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

According to Crystal field theory the bond between metal and ligand is purely ------------.

a)

Electrostatic

b)

Covalent

c)

No such type of interactions

2.

The magnitude of Crystal Field splitting of d orbitals depends on

a)

Orientation of the d orbitals around the central metal ion .

b)

Number of interacting ligand

c)

Nature of the ligand

d)

Nature of the metal

e)

All of the above

3.

The extent of splitting in Octahedral complexes is denoted by ---------------

a)

Δt

b)

Δ0

c)

Δsp

4.

The ligands with high CFSE than pairing energy called

a)

Strong field ligands

b)

Weak field ligands

c)

Neutral ligands

5.

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?

a)

dz2

b)

dxy and dxz

c)

dxy, dxz and dyz

d)

dz2 and dx2- y2

6.

When the ligands move along the x, y and z axes of d orbital in metal ion (tetrahedral geometry), none of the five d orbitals is directly in their path. Name the d orbitals that feel strong repulsion?

a)

dz2 and dx2- y2

b)

dxy, dxz and dyz

c)

dxy and dxz

d)

dz2

7.

Which of following has highest CFSE

a)

[Cr(H2O)6]3+

b)

[Mn(H2O)6]2+

c)

[FeCl4]2-

d)

[TiF6]3-

8.

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

a)

dxy, dxz and dyz

b)

dxy and dxz

c)

dz2 and dx2- y2

d)

dz2

9.

In presence of strong field ligands ----------complexes could result .

a)

High spin complexes

b)

low spin complexes

c)

Inner orbital complexes

d)

Both 2 and 3 options

10.

Crystal field strength of the ligand is inverse proportional to splitting energy

a)

true

b)

false