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Duplicate of TalbotHeath A2 Chemistry Transition Elements Flashcards | StudBud
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Duplicate of TalbotHeath A2 Chemistry Transition Elements
What colour is Mn(OH)2?
Which is the correct electron configuration of a Cu2+ ion?
Duplicate of TalbotHeath A2 Chemistry Transition Elements
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Answers
1
Which is the correct electron configuration of a Cu
2+
ion?
[Ar] 4s2
[Ar] 3d10 4s2
[Ar] 3d9
[Ar] 3d10 4s1
2
What colour is Mn(OH)
2
?
Blue
Light Brown
Yellow
Green
3
Which is the correct electron configuration of a Cr atom?
[Ar] 3d4 4s2
[Ar] 3d5 4s1
[Ar] 4s2
[Ar] 3d6
4
What colour is a solution of [CuCl
4
]
2-
?
Yellow
Blue
Pink
Green
5
What is the oxidation state of iron in Fe
2
O
3
?
+3
+4
+1
+2
6
In a complex ion, the molecules bonded to the central metal ion are known as...
ligands
co-ordination molecules
d-block elements
charges
7
What colour is a solution of [Cu(H
2
0)
6
]
2+
?
Light blue
Pale green
Deep blue
Dark green
8
The co-ordination number of this complex is...
2
8
4
6
9
What happens when Cu
2
O is added to H
2
SO
4
?
Solid Cu formed
Disproportionation
Water formed
Blue solution forms
10
What colour is Mn(VII) in solution?
Yellow
Pink
Colourless
Green
11
The bond angle in this complex ion is...
109.5
90
104.5
120
12
A heterogenous catalyst is...
a different colour to the reactants
in aqueous solution
in a different vessel to the reactants
in a different state to the reactants
13
What colour is Cr(OH)
3
?
Purple
Yellow
Blue
Grey-green
14
What colour is iron in the +2 oxidation state?
Orange
Pale green
Blue
Brown
15
Which type of isomerism would this complex ion exhibit?
Cis-trans isomerism
Optical isomerism
Structural isomerism
None
16
What colour is a solution of [Cr(NH
3
)
6
]
3+
?
Blue
Pink
Green
Purple
17
Which of these complex ions would you expect to be square planar shaped?
[Pt(NH3)4] 2+
[Cu(H2O)6]2+
[CoCl4]2-
[CuCl4]2-
18
Which type of isomerism would this complex exhibit?
Cis-trans isomerism
E-Z isomerism
None
Optical isomerism
19
Why is zinc not considered to be a transition metal?
The Zn2+ ion loses two 4s electrons
It is used in coins
It is not magnetic
It does not form ions with a partially filled d-orbital
