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Byju's Answer
Standard X
Chemistry
Covalent Bond
For the react...
Question
For the reaction
NH
+
4
+
S
- 2
⇌
N
H
3
+ H
S
-
, N
H
3
and
S
- 2
are a group of :-
A
Acids
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B
Bases
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C
Acid-base pair
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D
None of these
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Solution
The correct option is
C
Acid-base pair
N
H
4
+
+
S
−
2
⇌
N
H
3
+
H
S
−
Acid Base C.B C.A
N
H
3
is conjugate base of
N
H
4
+
and
S
−
2
. Hence both are acid-base pair.
Ans-option C
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Similar questions
Q.
For the following equilibrium
N
H
4
HS
(
s
)
⇌
N
H
3
(
g
)
+
H
2
S
(
g
)
; partial pressure of
N
H
3
will increase
Q.
For the following reaction:
Phenol
1.
Base
−
−−−−−
→
2.
C
O
2
,
H
+
Product(s)
Choose the correct option(s):
Q.
Benzoic acid
(
A
)
N
H
3
−
−−
→
Δ
P
B
r
2
−
−−−
→
N
a
O
H
Q
A
N
3
H
−
−−−
→
H
2
S
O
4
R
i
.
H
N
O
2
−
−−−−−
→
i
i
.
H
2
O
,
Δ
S
For the given sequences, choose the coorect option(s)
Q.
For the water gas reaction
C
(
S
)
+
H
2
O
(
g
)
⇌
CO
(
g
)
+
H
2
(
g
)
At
1000
K
the standard Gibbs free energy change of the reaction is
−
8.314
kJ/mol
. Therefore at
1000
K
the equilibrium constant of the above water gas reaction is:
(
Where
e
=
2.718
=
Euler's number
)
Q.
A
20.0
litre vessel initially contains
0.50
mole each of
H
2
and
I
2
gases. These substances react and finally reach an equilibrium condition. Calculate the equilibrium concentration of
H
I
if
K
e
q
=
49
for the reaction
H
2
+
I
2
⇌
2HI
.
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