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Worksheetsionic equilibrium
Total questions: 10
Worksheet time: 5mins
A solution whose pH value is less than 7 will be
Basic
Neutral
Acidic
Buffer
pKa values of two acids A and B are 4 and 5. The strengths of these two acids are related as
Acid A is 10 times stronger than acids B
The strengths of the two acids can not be compared
Acid B is 10 times stronger than acid A
Strength of acid A : strengtha of acid B = 4 : 5
An aqueous solution of CH3COONa will be
None of these
Alkaline
Acidic
Neutral
Which of the following statement is true?
The base and its conjugate acid react to form a neutral solution
The conjugate base of a weak acid is a weak base
The conjugate base of a weak acid is a strong base
The conjugate base of a strong acid is a strong base
The pH of water at 25oC is nearly
12
10
7
4
According to Bronsted-Lowry concept, base is a substance which is
An electron pair donor
An electron pair acceptor
A proton donor
A proton acceptor
Which is incorrect for buffer solution?
There is no change is pH value when acid and base is mixed
It contains strong acid and its conjugate base
It contains weak acid and its conjugate base
It contains weak base and its conjugate acid
The solubility of AgI in NaI solution is less than that in pure water because
Solubility product of AgI is less than that of NaI
Of common ion effect
AgI forms complex with NaI
The temperature of the solution decreases
According to Bronsted law, water is a/an
Acid and base both
acid
base
salt
Ammonia gas dissolves in water to give NH4OH. In this reaction water acts as
A conjugate base
A base
A salt
An acid
