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Byju's Answer
Standard VIII
Chemistry
Reactivity Series
Identify the ...
Question
Identify the correct order of reactivity of metals among the following.
A
C
u
<
F
e
<
Z
n
<
A
l
<
N
a
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B
F
e
<
Z
n
<
C
u
<
N
a
<
A
l
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C
Z
n
<
C
u
<
F
e
<
A
l
<
N
a
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D
C
u
<
Z
n
<
A
l
<
N
a
<
F
e
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Solution
The correct option is
A
C
u
<
F
e
<
Z
n
<
A
l
<
N
a
The correct order of reactivity can be written as:
C
u
<
F
e
<
Z
n
<
A
l
<
N
a
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0
Similar questions
Q.
(i) Arrange the following metals in an increasing order of their reactivity towards water: Zn, Fe, Mg, Na.
(ii) Arrange the following in increasing order of their oxides to get reduced with carbon: Al, Na, Fe, Cu.
(iii) Arrange the following metals in order of decreasing order of their chemical reactivity: Mg, Ca, Cu, Fe, Na, Zn, Pb.
Q.
Which of the following is the correct conclusion. Also, give the reason?
Observation
I
II
III
Solution after reaction
Colourless
Colourless
Colourless
Metal Deposited
Zn
Cu
Fe
(a) Al is more reactive than Cu and Fe but less reactive than Zn
(b) Al is more reactive than Cu but less reactive than Zn and Fe
(c) Al is more reactive than Zn and Cu but less reactive than Fe
(d) Al is more reactive than Zn, Cu, Fe.
Q.
L
i
,
K
,
C
a
,
N
a
,
M
g
,
A
l
,
Z
n
,
F
e
,
P
b
,
C
u
,
H
g
,
A
g
I
. The reaction
Z
n
(
s
)
+
C
u
(
N
O
3
)
2
(
a
q
)
→
C
u
(
s
)
+
Z
n
(
N
O
3
)
2
(
a
q
)
will occur.
I
I
. Zinc and copper are both transition metals.
Q.
How many of the following metals is extracted by self reduction process?
P
b
,
A
u
,
M
g
,
S
n
,
F
e
,
A
l
,
A
g
,
H
g
,
N
a
,
Z
n
,
C
u
,
C
a
Q.
L
i
,
K
,
C
a
,
N
a
,
M
g
,
A
l
,
Z
n
,
F
e
,
P
b
,
C
u
,
H
g
,
A
g
Which metal will displace hydrogen from acids but not water?
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