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CONFIDENTIAL
SULTAN IDRIS EDUCATION UNIVERSITY
UNIVERSITI PENDIDIKAN SULTAN IDRIS
FINAL EXAMINATION
SEMESTER 2 SESSION 2015/2016
CODE: SKT1013
COURSE
INTRODUCTION TO
.
INORGANIC CHEMISTRY
2 9 FEB 2016
DATE:
DURATION
:
2 HOURS
INSTRUCTIONS
1. This paper consists of two sections: PART A and PART B.
questions in PART A on the OMR answer sheet.
3. Answer ALL questions in PART B in the examination booklet
2. Answer ALL
4. Scientific calculator
5. This
question
This
provided.
be used in this examination.
will
be collected at the end of the examination.
paper
can
question paper contains
13 pages
the
including
cover
page and
appendix
PROGRAMME:
LECTURE GROUP:
YEAR:
A/8/C/D/E/F/G/H
REGISTRATION NO:
IDENTITY CARD NO:
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LECTURER: PROF. DR. MUSTAFFA AHMADI DR. NORHAYATI HASHIMI
DR. YUSNITA JUAHIR
DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO
CONFIDENTIAL
SKT1013 Introduction to Inorganic
2
Chemistry
Part A
Instruction: Answer ALL
(Avogadro's
1.
2.
3.
4.
5.
(30 Marks)
questions
number
=
on
6.023
Which groups contain the most elements classified
A.
1,2, 13
B.
2,14,15
C.
13,14, 15
D.
14, 15, 16
Magnesium
is the same group
A.
Barium
B.
Sodium
C.
Aluminium
D.
Phosphorus
Which
or
family
OMR
as
x
answer
sheet
1023)
metalloids
(semi metals)?
as
compound is formed colour in aqueous solution?
A.
Zinc acetate
B.
Copper sulfate
C.
Potassium bromide
D.
Sodium
hydroxide
Which elements in
A.
N
B.
As
C.
Si
D.
Bi
Group 15, has the strongest metallic character?
What is the electron
A.
[Ar] 3d4 4s2
B.
[Ar] 3d44p2
C.
1
[Ar] 3d5 4s
D.
[Ar] 3d64s0
configuration
for
24Cr?
[See next page
SKT1013 Introduction to
6.
3
Inorganic Chemistry
Transition elements
are
elements that contain
of the oxidation states of their
an
incomplete
d sub-shell in at least
compound. Which of the following
one
elements is TRUE
about transition element?
7.
8.
A.
Soft and
strong in their physical properties
B.
More harder than those of the s-block elements
C.
React with steam to
D.
Good conductors of heat and
What is the electron
A.
[Ar] 3cF
B.
[Ar] 3cf
C.
[Ar] 3cf 4s2
D.
[Ar] 3cf 4pl
give
metal
electricity only
for
configuration
and
hydroxides
hydrogen
in
liquid
state
Fe3+?
Refer to the below
diagram. The
middle of the series
(Cr to Ni) is due to the following factors EXCEPT
trend showed
a
slight reduction
in atomic radius at the
0.16
0.14
E
.§.
Vl
�
'5
III
I
Atomio radius
().12
.,
::0
'g
0.10
IX:
-�
0.08
'.
.
Ionic radius
�.��on}·
radius
0::
'
;
0.06
�--.._...___.
..
Ionic
(+3 ion)
a
�
TI
V
�
�
�
�
M
�
�
Element
Element
A.
More electrons enter the inner 3d sub-shell
B.
The electron clouds
C.
The inner 3d electrons shield the outer 48 electrons
D.
The effective nuclear
are
pulled
closer to the nucleus
charge experienced by 48
effectively
electrons increases very
slowly
[See
next page
SKT1013 Introduction to Inorganic Chemistry
9.
Compounds
are
10.
referring
with the
same
4
molecular formula but different arrangement of atoms in space
to
_
A.
isomers
B.
stereoisomer
C.
structural isomer
D.
empirical isomers
Which of the
structures
following
represent compounds that
are
coordination sphere
isomers of each other?
11.
I.
[Co(NH3)6][Cr(CN)6]
II.
[Cr(N H3)6][CO(CN)s]
III.
[Co(NH3)S][Co(CN)s]
IV.
[Cr(NH3)s][Cr(CN)s]
A.
I and II
B.
I and III
C.
I, II, and III only
D.
I, II, III, and IV
only
only
Which compound
I.
NOT ionization isomers?
are
[Co(NH3)sBr]S04
II.
[PtCb(NH3)4]Br2
Ill.
[Co(NH3)sCI]Br
IV.
[Cr(H20)s]CI3
and
and
and
A.
IV
B.
II and III
C.
III and IV
D.
I, II, III and IV
and
[Co(NH3)sS04]Br
[PtBr2(NH3)4]CI2
[Co(NH3)sCI]N03
[Cr(H2O)sCI]CI2.H2O
only
only
only
[See next page
SKT10131niroduction to Inorganic Chemistry
Consider the
12.
5
following octahedral complex structures,
and two different, monodentate
ligands X
2
Which one, if any, of the
A.
1 and 2
B.
1 and 3
C.
1 and 4
is
a
involving ethylene
diamine
and Y.
3
following
each
4
pair
of
optical isomers?
D.3and4
13.
14.
A
crystalline solid
has
_
A.
disordered arrangement
B.
long
C.
short range
D.
None of these
A unit cell
range
orderly arrangement
orderly arrangement
having dimensions
A.
cubic
B.
trigonal
C.
orthorombic
D.
rhombohedral
a
=
b
=
c,
a
=
13
=
V #: 90° is known
as
-
-
[See next page
SKT1013 Introduction to Inorganic Chemistry
15.
M crystallizes in
Vanadium
a
unit cell is 305 pm. What is the
16.
6
body-centred cubic lattice,
and the
length
of the
edge
of
a
density of V?
g/cm3
A.
5.96
B.
2.98
g/cm3
C.
2.98
x
10-6
D.
5.96
x
1 O�O
g/cm3
g/cm3
Potassium crystallizes in
a
body-centered cubic
lattice. How many atoms
are
there per
unit cell?
17.
A.
1
B.
2
C.
4
D.
6
MgO has the
surround each
18.
A.
4
B.
6
C.
8
D.
10
The atomic
same
crystal
Mg2+ ion
planes in
you find the first-order
A.
0.232°
B.
2.63°
C.
13.3°
D.
27.4°
as
a
(n
structure
nearest
as
neighbors?
graphite crystal
=
NaCI, face-centred cubic. How many oxide ions
1) diffraction
are
separated by 335 pm. At what angle would
of 0.154
nm
X-rays from
a
graphite crystal?
[See next page
SKT1013 Introduction to
Inorganic Chemistry
Determine the miller indice of the
19.
given plane
7
as
shown below.
z
1/2
y
o.
A.
(340)
B.
(304)
c.
(201)
D.
(21 0)
Table below, which
one
of the
following complex
ions has the correct
geometry,
coordination number and oxidation state?
Complex
geometry
Coordination
Oxidation state of
number
central cation
A.
[Ag(CN)2r
Linear
2
-1
B.
[CuCI4]2-
Tetrahedral
4
-2
C.
[Cr(C204)3]3-
Octahedral
3
+3
D.
[Cu(NH3)4(H20)2]2+
Octahedral
6
+2
[See next page
8
SKT1013 Introduction to Inorganic Chemistry
21.
22.
23.
24.
25.
Indicate the type of
A.
sp
B.
Sp2
C.
Sp3
D.
sp3cf
hybrid
orbital used
by the
central atom in SFs.
The geometry of the CS2 molecule is best described
A.
bent
B.
linear
C.
tetrahedral
D.
trigonal planar
Which
one
of the
A.
F-
B.
CH3CH3
C.
NH2NH2
D.
CH3OCH3
The
name
following
could NOT act
for the transition metal
B.
hexaaquachromium(III) trichloride
C.
chromium(III) hexahydrate chloride
D.
chromium(lll) chloride hexahydrate
a
Co3+ ion which is linked
ammonia molecules. Which formula
A.
Na[Co(NH3)4C03]
B.
[Co(NH3)4C03]Cb
C.
[Co(NH3)4C03]C03
D.
[Co(NH3)4C03hS04
ligand?
_
chloride
hexaaquachromium(III)
complex ion is formed by
'
complex [Cr(H20)s]Cb is
A.
A
as a
as
correctly represents
to one carbonate ion and four
a
salt of this
complex ion?
[See next page
SKT1013 Introduction to
26.
27.
In which of the
BCC
B.
CCP
C.
HCP
D.
In all three
pesticides
28.
29.
metal would have least
arrangement, the density would be
are
need to
the
promising
remove
A.
It is
B.
It is accumulated
C.
It is
probably
D.
It is
potentially
What is
9
following arrangements,
A.
Nanomaterials
Inorganic Chemistry
same
pesticides
removal
or
degradation. Why
from the environments?
change the properties
on
tools for
density?
of the soil
the surface of soil
released to the air
forming
the haze
to enter the food chain after
long time
graphene?
A.
Thin film made from fullerene
B.
A one-atom thick sheet of carbon
C.
A software to characterise
D.
A
Both
crystalline
new
nanoparticles
material made from carbon nanotubes
and
amorphous,
are
very
important
in modern
technology.
Which of the
following is involved in the preparation method of thin film in solid state?
I.
II.
Sol-gel
method
Thermal oxidation
III.
Sputtering
and
IV.
Chemical vapour
A.
I, II and III only
B.
I, II and IV only
C.
II, III and IV only
D.
All of
answer
deposition
deposition
above
[See next page
SKT1013 Introduction to Inorganic
30.
Chemistry
10
Fe304 have unique magnetic and electric properties. Therefore, it is suitable for various
applications. Which of the following applications is CORRECT for Fe304?
I.
II.
catalyst
fog collector
III.
lithium-ion batteries
IV.
waste water treatment
A.
I, II and III
B.
I, III and IV
C.
II, III and IV
D. All of
answer
above
[See next page
SKT1013 Introduction to
11
Inorganic Chemistry
Part B
Answer ALL
1.
(a)
Define the term
questions in
'amorphous'.
(30 MARKS)
the examination booklet
Give two
provided
(2) examples of amorphous solids.
[2 Marks}
(b)
A cubic solid is made of two elements P and Q. Atoms of Q
at the
are
at the corners and P
body-centre of the cube.
compound? Show your work.
i.
What is the formula of the
ii.
What is the coordination number of P?
iii.
Draw
a
structure of cubic above.
[4 Marks}
(c)
Copper crystallizes
in cubic unit cell with the lattice constant
a=3.6153 A. The atomic
106
mass
of copper is 63.546
gmor1
and the
(edge length)
density is
8.92
of
x
gm-3•
i.
Calculate the number of atom
ii.
Determine in which cubic form copper
iii.
Draw the unit cell of copper.
iv.
Calculate the radius of copper atom.
(n)
in
one
cell unit
occurs.
[BMarks}
[See next page
113 Introduction to
(a)
Coordination
industrial
12
Inorganic Chemistry
compounds involving the reaction
manufacturing.
One of coordination
of
ligand
and metal
compounds is
widely
used
used in
as
catalysts is
structure
molecule;
K2[CoCI(enh(CsHs)].
(Ethylenediamine
'en'
or
ligand
has
the
following
H2NCH2CH2NH2).
i.
Name the coordination
ii.
What is the oxidation state of the central metal?
iii.
Highlight
'en'
iv.
the donor atom and
give
the
likely
modes of
bonding
of the
ligand
(e.g: monodentate).
If 'en'
ligand has been replaced by four (4) hydroxo (OH) ligand,
coordination
v.
compound.
compound
name
the
new
and calculate the oxidation state of cobalt.
Draw the structural of both coordination
compounds.
[10 Marks]
Draw
(b)
(0 01), (1 21) and (1 34) planes
z
in the
given cubic lattice.
z
z
y
x
x
(001)
(1 21)
(1 34)
[6 Marks]
END OF QUESTIONS
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