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KCET 2020 Chemistry Solved Paper
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© examsnet.com
Question : 56
Total: 60
A sol of
A
g
I
is prepared by mixing equal volumes of
0.1
M
A
g
N
O
3
and
0.2
M
K
I
, which of the following statement is correct?
Sol obtained is a positive sol with
K
+
adsorbed on
A
g
I
Sol obtained is a negative sol with
I
−
adsorbed on
A
g
I
Sol obtained is a negative sol with
N
O
3
−
adsorbed on
A
g
I
Sol obtained is a positive sol with
A
g
+
adsorbed on
A
g
I
Validate
Solution:
Given reaction is,
𝐴
𝑔
𝑁
𝑂
3
+
𝐾
𝐼
→
𝐴
𝑔
𝐼
(
𝑆
𝑜
𝑙
)
+
𝐾
𝑁
𝑂
3
Here, amount of 𝐴𝑔𝑁𝑂3 present is 0.1 𝑀.
Amount of 𝐾𝐼 present is 0.2 𝑀.
Since 𝐾𝐼 is excess here, thus, sol obtained is a negative sol with
𝐼
−
adsorbed on 𝐴𝑔𝐼.
© examsnet.com
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