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Question
Chemistry
Calcium phosphide reacts with water to form Ca ( OH )2 and X . When X is passed into CuSO 4 solution. Y and H 2 SO 4 are formed. What is Y ?
Q. Calcium phosphide reacts with water to form
C
a
(
O
H
)
2
and
X
.
When
X
is passed into
C
u
S
O
4
solution.
Y
and
H
2
S
O
4
are formed. What is
Y
?
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A
[
C
u
(
P
H
3
)
4
]
2
+
B
[
C
u
(
P
H
3
)
6
]
2
+
C
C
u
3
P
2
D
C
u
H
P
O
4
Solution:
Calcium phosphide reacts with water to form calcium hydroxide and phosphine.
Calcium Phosphide
C
a
3
P
2
+
Water
6
H
2
O
⟶
Calcium hydroxide
3
C
a
(
O
H
)
2
a
q
+
Phosphine (Y)
2
P
H
3
(
g
)
Phosphine when passed into
C
u
S
O
4
solution, it reacts to produce black precipitate of cupric phosphide and
H
2
S
O
4
.
Phosphine
3
P
H
3
+
Copper sulphate
3
C
u
S
O
4
⟶
Cupric phosphide
C
u
3
P
2
+
Sulphuric acid
3
H
2
S
O
4