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Question
Chemistry
Arrange in increasing order of solubility of AgBr in solutions given here (i) 0.1 M NH3 (ii) 0.1 M AgNO3 (iii) 0.2 M NaBr (iv) pure water
Q. Arrange in increasing order of solubility of AgBr in solutions given here
(i) 0.1 M
N
H
3
(ii) 0.1 M
A
g
N
O
3
(iii) 0.2 M NaBr (iv) pure water
1889
211
NTA Abhyas
NTA Abhyas 2020
Equilibrium
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A
(iii) < (ii) < (iv) < (i)
36%
B
(iii) < (i) < (ii) < (iv)
16%
C
(iii) < (ii) < (i) < (iv)
39%
D
(ii) < (iii) < (iv) < (i)
8%
Solution:
AgBr
→
in
N
H
3
(Solubility increases, due to stable complex)
→
in 0.1 M
A
g
N
O
3
(Solubility decreases)
→
in 0.2 M NaBr (Solubility decreases more)
→
in pure water (Normal dissociation)
Hence the order is
(iii) < (ii) < (iv) < (i)