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Byju's Answer
Standard XII
Chemistry
Mole Concept
Number of ele...
Question
Number of electrons required to deposit one mole of
M
g
2
+
ion is :
A
6.023
×
10
23
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B
12.046
×
10
23
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C
18.069
×
10
23
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D
3.012
×
10
23
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Solution
The correct option is
C
12.046
×
10
23
The charge on
M
g
2
+
ion is +2.
Hence to deposit one mole of
M
g
2
+
ions, two moles of electrons are required.
This is equal to
2
×
6.023
×
10
23
=
12.046
×
10
23
e
l
e
c
t
r
o
n
s
.
Hence, option B is correct.
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