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Byju's Answer
Standard XII
Chemistry
Arrhenius Bases
KOH →
Question
K
O
H
→
A
K
+
(
a
q
)
+
O
H
−
(
a
q
)
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B
K
+
(
a
q
)
+
O
H
−
(
a
q
)
+
H
+
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C
K
+
(
a
q
)
+
2
O
H
−
(
a
q
)
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D
All of the above
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Solution
The correct option is
A
K
+
(
a
q
)
+
O
H
−
(
a
q
)
When base such as
K
O
H
dissolved in water, it dissociate to form hydroxyl and metal ion.
K
O
H
→
K
+
+
O
H
−
Suggest Corrections
0
Similar questions
Q.
C
l
2
(
g
)
+
O
H
−
(
a
q
)
→
O
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l
−
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+
C
l
−
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Balance the above reaction using oxidation number method.
Q.
K
2
C
O
3
(
a
q
)
+
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a
(
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H
)
2
(
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→
C
a
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3
(
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H
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The above reaction is an example of
reaction and the precipitate formed in this reaction is
.
Q.
H
2
+
1
/
2
O
2
⟶
H
2
O
;
Δ
H
⊖
=
−
68
K
c
a
l
.
K
+
H
2
O
+
a
q
⟶
K
O
H
(
a
q
)
+
1
/
2
H
2
;
Δ
H
⊖
=
−
48
K
c
a
l
.
K
O
H
+
a
q
⟶
K
O
H
(
a
q
)
;
Δ
H
⊖
=
−
14
K
c
a
l
From the above data, the standard heat of formation of
K
O
H
i
n
K
c
a
l
is
Q.
Find the heat change in the reaction
N
H
3
(
g
)
+
H
C
l
(
g
)
→
N
H
4
C
l
(
s
)
from the following data
N
H
3
(
g
)
+
a
q
→
N
H
3
(
a
q
)
,
Δ
H
=
−
8.4
K
.
C
a
l
.
H
C
l
(
g
)
+
a
q
→
H
C
l
(
a
q
)
,
Δ
H
=
−
17.3
K
.
C
a
l
.
N
H
3
(
a
q
)
+
H
C
l
(
a
q
)
→
N
H
4
C
l
(
a
q
)
,
Δ
H
=
−
12.5
K
.
C
a
l
s
.
N
H
4
C
l
(
s
)
+
a
q
→
N
H
4
C
l
(
a
q
)
,
Δ
H
=
+
3.9
K
.
C
a
l
.
Q.
Which of the following species act as an amphiprotic species in the following reactions?
H
C
l
(
a
q
)
+
H
2
O
(
a
q
)
⇌
H
3
O
+
(
a
q
)
+
C
l
−
(
a
q
)
N
H
3
(
a
q
)
+
H
2
O
(
a
q
)
⇌
N
H
+
4
(
a
q
)
+
O
H
−
(
a
q
)
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