Solubility product constant (Ksp) of salts of types MX , MX2 and M3X at temperature ' T ' are 4.0 × 10-8 , 3.2 × 10-14 and 2.7 × 10-15 respectively. Solubilities (mol dm-3) of the salts at temperature ' T ' are in the order
MX > MX2 > M3X
M3X > MX2 > MX
MX2 > M3X > MX
MX > M3X > MX2
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
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
The pKα of a weak acid, HA is 4.80. The Kb of a weak base BOH is 4.78. The pH of an aqueous solution of the corresponding salt BA , will be
7.01
9.22
9.58
4.79
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
The values of Kp1 and Kp2 for the reactions and are in ratio of 9:1.If degree of dissociation of x and A be equal, then total pressure at equilibrium (i) and (ii) are in the ratio of
3:1
1:9
36:1
1:1
The solubility of a saturated solution of calcium fluoride is 2×10-4 mol / L . Its solubility product is,
12×10-2
14×10-4
22×10-11
32×10-12
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
At constant temperature, the equilibrium constant (K p) for the decomposition reaction,
where , p= pressure, x= extent of decomposition. Which one of the following statement is true?
K p increases with increase of p
K p increases with increase of x
K p increases with decrease of x
Kp remains constant with change in p and x
The concentration of [H+] and concentration of [OH- ] of a 0.1M aqueous solution of 2% ionized weak mono basic acid is [ionic product of water = 1×10-14 ]
0.02×10-3 M and 5×10-11 M
1×10-3 M and 3×10-11 M
2×10-3 M and 5×10-12 M
3×10-2 M and 4×10-13 M
