What is the pH of0.01 M glycine solution? For glycine Ka1= 4.5x10-3 and Ka2=1.7x10-10 298 K.
3.0
10.0
7.06
8.2
Which of the following is not a characteristic of equilibrium?
Rate is equal in both directions
Measurable quantities are constant at equilibrium.
Equilibrium occurs in reversible condition.
Equilibrium occurs only in open vessel at constant temperature.
25 mL, 0.2 M Ca(OH)2 is neutralised by 10 mL of 1 M HCI. Then pH of resulting solution is
1.37
9
12
7
2SO2 (g) + O2 (g) is an example for :
neutralisation reaction
homogeneous catalysis
heterogeneous catalysis
irreversible reaction
C.
heterogeneous catalysis
2SO2 (g) + O2 (g) 2SO3 (g)
In this reaction , reactants as well as the catalyst are present in more than one phase , hence it is an example of heterogeneous catalysis .
Which one of the following salts on being dissolved in water gives pH > 7 at 25°C ?
KCN
KNO3
NH4Cl
NH4CN
Assertion : AgCl is more soluble in NH3 than in water.
Reason : Ammonia is more polar than water.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Assertion : The equilibrium constant is fixed and a characteristic for any given chemical reaction at a specified temperature.
Reason: The composition ofthe final equilibrium mixture at a particular temperature depends upon the starting amount of reactants.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.