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Byju's Answer
Standard XII
Chemistry
Hydrides of Group 16
H2S react wit...
Question
H
2
S
react with
O
2
in restricted supply of
O
2
to form:
A
H
2
S
+
S
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B
H
2
S
+
S
O
2
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C
H
2
S
+
S
O
3
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D
H
2
S
O
4
+
S
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Solution
The correct option is
A
H
2
S
+
S
H
2
S
+
O
2
⟶
H
2
S
+
S
H
2
S
reacts partially in restricted supply of
O
2
.
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0
Similar questions
Q.
If the supply of oxygen is limited,
H
2
S
reacts with
O
2
to form:
Q.
S
+
O
2
→
S
O
2
;
Δ
H
=
−
298.2
k
J
S
O
2
+
1
2
O
2
→
S
O
3
;
Δ
H
=
−
98.7
k
J
S
O
3
+
H
2
O
→
H
2
S
O
4
;
Δ
H
=
−
130.2
k
J
H
2
+
1
2
O
2
→
H
2
O
;
Δ
H
=
−
227.3
k
J
The heat of formation of
H
2
S
O
4
will be:
Q.
Assertion :
H
2
S
reacts with oxygen under standard conditions in acid medium to give
H
2
O
and sulphur. Reason:
E
o
H
+
/
O
2
/
P
t
>
E
o
H
+
/
H
2
S
/
S
Q.
If
H
2
S
+
3
2
O
2
→
H
2
O
+
S
O
2
,
Δ
H
=
−
136.7
K
c
a
l
H
2
+
1
2
O
2
→
H
2
O
,
Δ
H
=
−
68.4
K
c
a
l
S
+
O
2
→
S
O
2
,
Δ
H
=
−
71
K
c
a
l
what is
Δ
H
f
o
f
H
2
S
Q.
If
S
+
O
2
→
S
O
2
;
△
H
=
−
298.2
k
J
S
0
2
+
1
/
20
2
→
S
O
3
;
△
H
=
−
98.7
k
J
S
O
3
+
H
2
O
→
H
2
S
O
4
;
△
H
=
−
130.2
k
J
H
2
+
1
/
20
2
→
H
2
O
;
△
H
=
−
287
k
J
Then the enthalpy of formation of
H
2
S
O
4
at 298 K is?
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