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Class 11
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Chemistry
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Equilibrium
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Acids, Bases and Salts
Acids, Bases and Salts
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Arrhenius Theory of Acids and Bases
Example
Definitions
Formulaes
The Bronsted-Lowry Theory of Acids and Bases
Example
Definitions
Formulaes
Acids , Bases and Salts-Advanced
Example
Definitions
Formulaes
The Lewis Theory of Acids and Bases
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Classical Concept of Acids and Bases
8 mins
Arrhenius Theory
7 mins
Theories of Acids and Bases
16 mins
Quick Summary With Stories
Arrhenius Theory
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Lewis Acid and Bases
4 mins read
Important Questions
Which one of the following is the strongest acid?
Easy
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The species:
H
2
O
,
H
C
O
3
−
,
H
S
O
4
−
and
N
H
3
can act both as Bronsted acids and bases. For each case give the corresponding conjugate acid and base.
Hard
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Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a)
O
H
−
(b)
F
−
(c)
H
+
(d)
B
C
l
3
.
Medium
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>
Which of the following can act both as a Bronsted acid and a Bronsted base?
Medium
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>
What is meant by the conjugate acid-base pair? Find the conjugate acid/base
for the following species.
H
N
O
2
,
C
N
−
,
H
C
l
O
4
F
−
,
O
H
−
,
C
O
3
2
−
and
S
2
−
Hard
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>
The conjugate base of
H
2
P
O
4
−
is:
Medium
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>
A monoprotic acid in a
0
.
1
M solution ionises to
0
.
0
0
1
%
. Its ionization constant is:
Medium
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>
The ionization constant of acetic acid is
1
.
7
4
×
1
0
−
5
. Calculate the degree of dissociation of acetic acid in its 0.05 M solution. Calculate the concentration of acetate ion in the solution and its
p
H
.
Hard
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>
What will be the conjugate bases for the Bronsted acids
H
F
,
H
2
S
O
4
and
H
C
O
3
−
?
Medium
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>
Which of the following is a Lewis acid?
Medium
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>