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How many faradays are required to reduce
1
m
o
l
of
C
r
2
O
7
2
−
to
C
r
3
+
in acid medium
0
votes
asked
Dec 14, 2021
in
Some basic concepts in chemistry
by
kritika
(
90.1k
points)
How many faradays are required to reduce
1
m
o
l
of
C
r
2
O
7
2
−
to
C
r
3
+
in acid medium
(A) 2
(B) 3
(C) 5
(D) 6
Your answer
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3
Answers
0
votes
answered
Dec 14, 2021
by
kritika
(
90.1k
points)
Ans: (D)
1
m
o
l
C
r
2
O
7
2
- requires
6
m
o
l
electron
≡
6
F
charge
∴
Number of Faraday's required
=6
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Dec 12, 2021
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1. Why does an aqueous solution of acid conduct electricity? 2. How does the concentration of hydrogen ions [H3O+] change when the solution of an acid is diluted with water? 3. Which has higher pH? A concentrated or dilute solution of HCl? 4. What would you observe on adding dil HCl acid to (a) Sodium bicarbonate placed in a test tube? (b) Zinc metal in a test tube.
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A mixture of
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and
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and
8 g
of
A r
. If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of
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is: [Use atomic masses (in g
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