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Standard XII
Chemistry
Question
Phosphorous acid on heating gives the following products:
4
H
3
P
O
5
Δ
→
3
H
3
P
O
4
+
P
H
3
The above reaction is an example of:
thermal decomposition
disproportionation
reduction
oxidation
A
disproportionation
B
oxidation
C
thermal decomposition
D
reduction
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Solution
Verified by Toppr
4
H
3
P
O
3
Δ
⟶
3
H
3
P
O
4
+
P
H
3
It is disproportional where Phosphorus changes from
+
3
to
−
3
and
+
5
. So, this is an example of disproportion reaction.
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Similar Questions
Q1
Phosphorous acid on heating gives the following products:
4
H
3
P
O
5
Δ
→
3
H
3
P
O
4
+
P
H
3
The above reaction is an example of:
View Solution
Q2
Phosphorous acid on heating gives:
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Q3
The equivalent weight of phosphoric acid
(
H
3
P
O
4
)
in the reaction,
N
a
O
H
+
H
3
P
O
4
→
N
a
H
2
P
O
4
+
H
2
O
is:
View Solution
Q4
In the reaction
N
a
O
H
+
H
3
P
O
4
→
N
a
2
H
P
O
4
+
H
2
O
, the equivalent weight of
H
3
P
O
4
(phosphoric acid) is:
View Solution
Q5
White phosphorous on reaction with lime water gives calcium salt of an acid (A) along with a gas (X). Which of the following statements is correct?
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