The solubility product of CuS ,CdS and HgS are 10-31 , 10-44 , 10-54 , respectively.The solubility of these sulphides are in the order of
CdS > HgS > CuS
HgS > CdS > CuS
CdS > CuS > HgS
CuS > CdS >HgS
0.1 mole of CH3NH2 (Kb = 5 × 10-4 ) is mixed with 0.08 mole of HCl and diluted to one litre. What will be the H+ concentration in the solution?
8 × 10-2 M
8 × 10-11 M
1.6 × 10-11 M
8 × 10-5 M
The solubility product of a salt having general formula MX2 , in water is 4 × 10-12 . The concentration of M2+ ions in the aqueous solution of the salt is
4.0 × 10-10 M
1.6 × 10-4 M
1.0 × 10-4 M
2.0 × 10-6 M
then the formation constant of [Ag(NH3)2]+ is
6.08 × 10-6
6.08 × 106
6.08 × 10-9
None of these
The pH value of a 10 M solution of HCl is
less than 0
Equal to 0
Equal to 1
Equal to 2
Starting with one mole of O2 and two moles of SO2, the equilibrium for the formation of SO3 was established at a certain temperature. If V is the volume of the vessel and 2x is the number of moles of SO3 present, the equilibrium constant will be
Which of the following is most soluble ?
Bi2S3(KSP=1×10-70)
MnS(KSP=7×10-16)
CuS(KSP=8×10-37)
Ag2S(KSP=6×10-51)
The concentration of CO2 which will be in equilibrium with 2.5 × 10-2 mol L-1 of CO at 100°C for the reaction will be
0.5 × 10-2 mol L-1
12.5 × 10-2 mol L-1
2 × 10-2 mol L-1
The pH value of blood does not change appreciably by a small addition of an acid or base, because the blood -
is a body fluid
can be easily coagulated
contains iron as a part of the molecule
contains serum protein that acts as buffer
The solubility of sparingly soluble salt, AB2 in water is 1.0 × 10-5 mol L-1 .Its solubility product will be
4 × 10-10
1 × 10-15
1 × 10-10
4 × 10-15
