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KCET 2015 Chemistry Solved Paper
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© examsnet.com
Question : 47
Total: 60
The pair of compound which cannot exist together in solution is
N
a
H
C
O
3
and
N
a
O
H
N
a
H
C
O
3
and
H
2
O
N
a
H
C
O
3
and
N
a
2
C
O
3
N
a
2
C
O
3
and
NaOH
Validate
Solution:
N
a
H
C
O
3
is unstable with NaOH, because
N
a
H
C
O
3
is a basic salt, therefore, will react with NaOH and form
N
a
2
C
O
3
and water
N
a
H
C
O
3
+
N
a
O
H
→
N
a
2
C
O
3
+
H
2
O
© examsnet.com
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