CBSE
Multiple Choice QuestionsFor the chemical reaction 3X(g)+ Y(g) X3Y (g), the amount of X3Y at equilibrium is affected by
temperature and pressure
temperature only
pressure only
temperature, pressure and catalyst
Which one of the following pair shows Buffer's solution?
NaCl + NaOH
CH3COONa + CH3COOH
CH3COOH + CH3COONH4
H2SO4 + CuSO4
Which of the following chloride is water insoluble?
HCl
AgCl
Both 'a' and 'b'
None of these
CH3COOH is weaker acid than H2SO4.It is due to:
more ionization
less ionization
covalent bond
electrovalent bond
The solubility of Sb2S3 in water is 1.0 × 10-5 mol/L at 298K. What will be its solubility product?
108 × 10-25
1.0 × 10-25
144 × 10-25
126 × 10-24
In homogeneous catalysis
the reactants, catalyst and products are in the same phase.
the catalyst and reactants are in the same phase.
the catalyst and products are in the same phase.
the reactants and products are in the same phase.
A liquid is in equilibrium with its vapour at it's boiling point. On the average, the molecules in two phases have equal
inter- molecular forces
potential energy
kinetic energy
total energy
In the reaction , the equilibrium constant Kc is given by
0.005 M acid solution has 5 pH. The percentage ionisation of acid is :
0.8%
0.6%
0.4%
0.2%
The pair of compound which cannot exists together in solution is
NaHCO3 and NaOH
Na2CO3 and NHCO3
Na2CO3 and NaOH
NaHCO3 and NaCl
