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Byju's Answer
Standard VII
Chemistry
Physical Change
CdSO4+K2S ⟶ C...
Question
C
d
S
O
4
+
K
2
S
⟶
C
d
S
+
K
2
S
O
4
.
The reaction is an example of:
A
double displacement reaction
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B
precipitation reaction
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C
both A and B
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D
none of the above
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Solution
The correct option is
C
both A and B
C
d
S
O
4
+
K
2
S
⟶
C
d
S
↓
+
K
2
S
O
4
In this reaction, the product has a precipitate of
C
d
S
.
Therefore, it is precipitation reaction and a double displacement reaction and the radicals are being exchanged to form new compounds.
Hence, option C is correct.
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Q.
K
2
C
O
3
(
a
q
)
+
C
a
(
O
H
)
2
(
a
q
)
→
CaCO
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⏐
↓
(
s
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+
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(
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The above reaction is an example of ______ reaction and the precipitate formed in this reaction is ______ .