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BSAC 204-Before-final-exam_Part 2

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the coordination number in Na[Co(ox)2(H2O)2]?

a)

4

b)

5

c)

6

d)

7

2.

What is the oxidation state of the metal in (NH4)2[CoCl4] ?

a)

0

b)

+1

c)

+2

d)

-2

3.

What is the ligand name and the charge of "gly" ?

a)

Glycinato, -1

b)

Glycine, 0

c)

Glycinato, 0

d)

Glycine, -1

4.

Which of the following electron configurations of octahedral complexes is diamagnetic?

a)

d2

b)

d6, low spin

c)

d6, high spin

d)

d4, high spin

5.

What is the symbol of the orbitals of tetrahedral complexes at the higher energy state?

a)

eg

b)

t2g

c)

e

d)

t2

6.

The magnitude of d-d orbital splitting energy (Δo) is dependent on __________.

a)

Type of metal and type of ligand

b)

Type of ligand only

c)

Charge of metal only

d)

Type of metal, charge of metal, and type of ligand

7.

cis-[RhCl2(NH3)(H2O)] is _____________ .

a)

a chiral tetrahedral complex

b)

an achiral tetrahedral complex

c)

a chiral square planar complex

d)

an achiral square planar complex

8.

NH3 and CO are considered as __________ .

a)

sigma donor and pi acceptor, respectively

b)

sigma donor and pi donor, respectively

c)

pi donor and pi acceptor, respectively

d)

pi acceptor and pi donor, respectively

9.

Which type of ligands gives the smallest Δo when bonded to the same metal ion ?

a)

Pi donor

b)

Pi acceptor

c)

Sigma donor

d)

Sigma acceptor

10.

Which element has the highest melting point (3,422 °C) in the periodic table?

a)

Gold (Au)

b)

Tungsten (W)

c)

Molybdenum (Mo)

d)

Gallium (Ga)