Chemistry Concepts Challenge
Chemistry Concepts Challenge
Test your knowledge of key chemistry concepts with our engaging quiz! From the properties of acids and bases to the principles of equilibrium, this quiz covers a range of essential topics.
Whether you're a student or a chemistry enthusiast, you can enhance your understanding through:
- Interactive questions
- Instant feedback on your answers
- A chance to learn while having fun!
According to Lewis concept, an acid is:
Proton Donor
Electron pair donor
Electron pair acceptor
Proton acceptor
Ostwald's dilution law is applicable to :
Strong electrolyte only
Weak electrolytes only
Non electrolytes
Strong and weak electrolytes
The pH of a solution of hydrochloric acid is 4. The molarity of the solution is:
4.0
0.4
0.0001
0.004
Which of the following pair constitutes a buffer??
NaOH and HCl
HNO3 and NH4NO3
HCl and KCl
HNO2 and NaNO2
Which of the following is the weakest base???
NaOH
Ca(OH)2
NH4OH
KOH
A base according to Bronsted concept is a substance which can:
Lose pair of electrons
Donate protons
Gain a pair of electrons
Accept protons
In a reversible chemical reaction at equilibrium, if the concentration of any one of the reactants is doubled, then the equilibrium constant will:
Also be doubled
Be halved
Remain the same
Become one fourth
Among the following the weakest Bronsted base is:
F-
Cl-
Br-
I-
Amines behave as :
Lewis acid
Lewis base
Aprotic acid
Neutral compound
At equilibrium, rate of forward reaction will be_____rate of backward reaction
Equal to
Less than
Greater than
For a pure substance, at atmospheric pressure the temperature at which the solid and liquid phases are at equilibrium is called:
Freezing point
Boiling point
Kraft temperature
Absolute temperature
Henry's law is applicable for :
Solid-liquid equilibrium
Solid - gas equilibrium
Gas - liquid equilibrium
Gas - solution of gas equilibrium
The acid base pair that differs by one _____ is called a conjugate acid-base pair
Electron
Proton
Hydronium ion
Hydroxyl ion
Which of the following will give highest pH in water:
KCl
NaCl
Na2CO3
CuSO4
For a buffer solution, which of the following is true??
PH does not change at all on addition of acid or base
PH change is very little on addition of acid or base
It is a mixture of strong acid with its salt
It is a mixture of strong base with its salt
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