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Byju's Answer
Standard XII
Chemistry
Oxides of Sulphur
An aqueous so...
Question
An aqueous solution of a gas
(
X
)
gives the following reaction:
On passing
H
2
S
in the solution white turbidity is obtained. Identify
(
X
)
and give the equation.
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Solution
S
O
2
+
2
H
2
S
→
3
S
(
C
o
l
l
o
i
d
a
l
S
u
l
p
h
u
r
)
+
2
H
2
O
Colloidal Sulphur gives white turbidity.
Hence
(
X
)
=
S
O
2
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Similar questions
Q.
An aqueous solution of a gas
(
X
)
gives the following reactions:
(i) It decolourises an acidified
K
2
C
r
2
O
7
solution.
(ii) On boiling with
H
2
O
2
and cooling it and then adding an aqueous solution of
B
a
C
l
2
, a ppt. insoluble in dilute
H
C
l
, is produced.
(iii) On passing
H
2
S
in the solution, white turbidity is formed.
Identify
(
X
)
.
Q.
An aqueous solution of a gas
(
X
)
gives the following reactions :
(i) It turns an acidified
K
2
C
r
2
O
7
solution green.
(ii) On boiling it with
H
2
O
2
, cooling it and then adding an aqueous solution of
B
a
C
l
2
, a precipitate insoluble in dilute hydrochloric acid is obtained.
(iii) On passing
H
2
S
in the solution a white turbidity is obtained.
Identify (X).
Q.
If
(
X
)
gives white turbidity when
H
2
S
is passed through
its aqueous solution, then
X
may be :
Q.
A black coloured compound
(
A
)
on reaction with dilute
H
2
S
O
4
gives a gas
(
B
)
which on passing in a solution of an acid
(
C
)
gives a white turbidity
(
D
)
. Gas
(
B
)
when passed in an acidified solution of a compound
(
E
)
gives a precipitate
(
F
)
soluble in dil.
H
N
O
3
. After boiling this solution when an excess of
N
H
4
O
H
is added, a blue coloured compound
(
G
)
is formed. To this solution on addition of acetic acid and aqueous
K
4
[
F
e
(
C
N
)
6
]
a chocolate precipitate
(
H
)
is obtained. On addition of an aqueous soluion of
B
a
C
l
2
to an aqueous solution of
(
E
)
, a white precipitate insoluble in
H
N
O
3
is obtained. Identify
(
G
)
and
(
H
)
.
Q.
A gas
X
occupies
22.4
L at S.T.P. The gas turns acidified
K
2
C
r
2
O
7
green and decolourizes acidified
K
M
n
O
4
solution. White turbidity appears when
H
2
S
gas is passed through aqueous solution of gas, then
X
will be :
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