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Byju's Answer
Standard XII
Chemistry
Variable Oxidation States
Mercurous ion...
Question
Mercurous ion is represented as:
A
H
g
2
+
2
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B
H
g
2
+
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C
H
g
+ and
H
g
2
+
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D
3
H
g
3
+
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Solution
The correct option is
A
H
g
2
+
2
Mercurous ion is represented as
H
g
2
+
2
Option A is correct.
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0
Similar questions
Q.
H
g
2
+
2
+
2
e
−
→
2
H
g
⟹
E
0
=
0.789
V
H
g
2
+
+
2
e
−
→
H
g
⟹
E
0
=
0.854
V
Calculate the equilibrium constant for
H
g
2
+
2
→
H
g
+
H
g
2
+
.
Q.
Calculate
K
c
for
H
g
2
+
+
H
g
⇌
H
g
2
+
2
.
Give that
E
o
2
H
g
/
H
g
2
+
=
−
0.788
V
and
E
o
H
g
2
+
2
/
2
H
g
2
+
=
−
0.920
V
.
Write answer as nearest integer after dividing by 100.
Q.
Element
H
g
has two oxidation states
H
g
1
+
&
H
g
2
+
, the correct order of radii of these ions?
Q.
The equilibrium constant for the following reaction :
H
g
2
+
+
H
g
→
H
g
2
+
2
E
⊖
(
H
g
|
H
g
2
+
)
=
−
0.788
V
;
E
⊖
(
H
g
2
+
2
|
2
H
g
2
+
)
=
−
0.92
V
is
K
e
q
=
2.98
×
10
x
The value of
x
is ______.
Q.
An aqueous solution contains
H
g
2
+
,
H
g
2
+
2
,
P
b
2
+
, and
C
d
2
+
. Out of these, how many ions will produce white
precipitate with
d
i
l
u
t
e
H
C
l
?
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