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Standard XII
Chemistry
Types of Catalysis
10g of MnO2 o...
Question
10g of MnO2 on reaction with HCl forms 2.24L of Cl2(g) at NTP, the percentage impurity of MnO2 is MnO2 + 4HCl MnCl2 + Cl2 + 2H2O (1) 87% (2) 25% (3) 33.3% (4) 13%
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Similar questions
Q.
10
g
of
M
n
O
2
on reaction with HCI forms
2.24
L
of
C
I
2
(
g
)
at NTP, the percentage impurity of
M
n
O
2
is:
M
n
O
2
+
4
H
C
I
→
M
n
C
I
2
+
C
I
2
+
2
H
2
O
Q.
M
n
O
2
+
4
H
C
l
⟶
M
n
C
l
2
+
2
H
2
O
+
C
l
2
2
moles
M
n
O
2
reacts with
4
moles of
H
C
l
to form
11.2
L
C
l
2
at STP. Thus, percent yield of
C
l
2
is
:
Q.
Assertion :One equivalent of
M
n
O
2
reacts with 2 equivalents of
H
C
l
in the reaction,
M
n
O
2
+
4
H
C
l
⟶
M
n
C
l
2
+
2
H
2
O
+
C
l
2
. Reason: One equivalent of
M
n
O
2
reacts with one equivalent of
H
C
l
.
Q.
M
n
O
2
+
4
H
C
l
→
2
H
2
O
+
M
n
C
l
2
+
C
l
2
The reaction of
M
n
O
2
and
H
C
l
produces
2.24
L
of
C
l
2
gas. What mass of
M
n
O
2
was used up by the reaction? (At. mass of
M
n
=
55
g
/
m
o
l
)
Q.
4
H
C
l
+
M
n
O
2
→
M
n
C
l
2
+
2
H
2
O
+
C
l
2
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