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Byju's Answer
Standard XII
Chemistry
Valency and Oxidation State
HCl on oxidat...
Question
HCl on oxidation gives water and chlorine. How many litres of chlorine on STP can be obtained starting with 36.5 gram of HCl.
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Solution
Dear Student,
4
HCl
+
O
2
→
2
Cl
2
+
2
H
2
O
4
mol
2
mol
4
mol
of
HCl
goves
2
mol
of
Cl
2
Number
of
moles
of
HCl
present
=
Mass
Molar
mass
=
36
.
5
36
.
5
=
1
mol
So
,
1
mol
of
HCl
will
give
1
4
×
2
=
0
.
5
mol
of
Cl
2
and
,
1
mol
of
Cl
2
at
STP
occupies
22
.
4
L
So
,
0
.
5
mol
of
Cl
2
will
occupy
22
.
4
×
0
.
5
=
11
.
2
L
Hence
,
11
.
2
L
of
Cl
2
can
be
obtained
with
36
.
5
g
of
HCl
.
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