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Question
Chemistry
Phosphorous acid on heating gives the following products: 4H3PO3 xrightarrowΔ 3H3PO4 +PH3 The above reaction is an example of
Q. Phosphorous acid on heating gives the following products :
4
H
3
P
O
3
Δ
3
H
3
P
O
4
+
P
H
3
The above reaction is an example of
2744
233
The p-Block Elements - Part2
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A
oxidation
0%
B
thermal decomposition
0%
C
disproportionation
100%
D
reduction
0%
Solution:
4
H
3
P
O
3
Δ
3
H
3
P
O
4
+
P
H
3
In the reaction, the acid in
+
3
oxidation state of
P
tends to disproportionate to higher
(
+
5
)
and lower
(
−
3
)
oxidation state in
H
3
P
O
4
and
P
H
3
respectively.