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Byju's Answer
Standard XII
Chemistry
Stoichiometry
Complete the ...
Question
Complete the following reactions:-
(i)
C
u
+
H
N
O
3
(
d
i
l
)
→
(ii)
X
e
F
2
+
A
s
F
5
→
(iii)
C
a
F
2
+
H
2
S
O
4
→
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Solution
(
i
)
C
u
+
4
H
N
O
3
⟶
C
u
(
N
O
3
)
2
+
2
N
O
2
+
2
H
2
O
(
i
i
)
3
X
e
F
2
+
2
A
s
F
5
⟶
[
X
e
F
]
+
[
A
s
F
6
]
−
+
[
X
e
2
F
3
]
[
A
s
F
6
]
(
i
i
i
)
C
a
F
2
+
H
2
S
O
4
⟶
C
a
S
O
4
+
2
H
F
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Similar questions
Q.
Consider the following reactions:
(
i
)
C
u
+
H
N
O
3
(
d
i
l
.
)
→
(
i
i
)
C
u
+
H
N
O
3
(
c
o
n
c
.
)
→
(
i
i
i
)
Z
n
+
H
N
O
3
(
20
%
)
→
(
i
v
)
Z
n
+
H
N
O
3
(
60
%
)
→
Total number of reactions in which
N
2
is released is/are:
Q.
Complete the following equations:
(i)
C
u
+
2
H
2
S
O
4
(
c
o
n
c
.
)
(ii)
X
e
F
2
+
H
2
O
Q.
(a) Complete the following chemical equation :
(i)
C
u
+
H
N
O
3
(
d
i
l
.
)
→
(ii)
X
e
F
4
+
O
2
F
2
→
(b) Explain the following observations :
(i) Phosphorus has a grater tendency for catenation than nitrogen.
(ii) Oxygen is a gas but sulphur a solid.
(iii) The halogens are coloured. Why?
Q.
Balance the following equation by oxidation number method
i)
K
2
C
r
2
O
7
+
K
I
+
H
2
S
O
4
→
K
2
S
O
4
+
C
r
2
(
S
O
4
)
3
+
I
2
+
H
2
O
ii)
K
M
n
O
4
+
N
a
2
S
O
3
→
M
n
O
2
+
N
a
2
S
O
4
+
K
O
H
iii)
C
u
+
H
N
O
3
→
C
u
(
N
O
3
)
2
+
N
O
2
+
H
2
O
iv)
K
M
n
O
4
+
H
2
C
2
O
4
+
H
2
S
O
4
→
K
2
S
O
4
+
M
n
S
O
4
+
C
O
2
+
H
2
O
Q.
Balance the following reactions:
1.
C
u
+
H
2
S
O
4
−
→
C
u
S
O
4
+
S
O
2
↑
+
H
2
O
2.
F
e
+
+
H
2
O
−
→
F
e
3
O
4
+
H
2
↑
3.
C
H
4
+
O
2
→
C
O
2
+
H
2
O
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