The solubility of AgCl (s) with solubility product 1.6 x 10-10 in 0.1 M NaCl solution would be
(1) 1.26 x 10-5 M
(2) 1.6 x 10-9 M
(3) 1.6 x 10-11 M
(4) zero
Boric acid is an acid because its molecule
(1) contains replaceable H+ ion
(2) gives up a proton
(3) accepts OH- from water releasing proton
(4) combines with proton from water molecule
Which of the following fluoro-compounds is most likely to behave as a Lewis base?
(1) BF3
(2) PF3
(3) CF4
(4) SiF4
Among the following, the correct order of acidity is
1. HClO < HClO2 < HClO3 < HClO4
2. HClO2 < HClO < HClO3 < HCLO4
3. HClO4 < HClO2 < HClO < HClO3
4. HClO3 < HClO4 < HClO2 < HClO
MY and NY3 , two nearly insoluble salts, have the same Ksp values of 6.2 x 10-13 at room
temperature. Which statement would be true in regard to MY and NY3?
1. The molar solubility of MY in water is less than that of NY3
2. The salts MY and NY3 are more soluble in 0.5 M KY than in pure water
3. The addition of the salt of KY to solution of MY and NY3 will have no effect on their
solubilities
4. The molar solubilities of MY and NY3 in water are identical
Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount
of KHSO4 is added to the mixture, the rate of nitration will be
1. slower
2. unchanged
3. doubled
4. faster
Consider the following liquid-vapour equilibrium
Liquid Vapour
Which of the following relations is correct?
1.
2.
3.
4.
If the value of an equilibrium constant for a particular reaction is 1.6 x 1012, then at equilibrium the system will contain
1. 100% reactants
2. mostly reactants
3. mostly products
4. reactants and products in ratio of 1:1
The Ksp of Ag2CrO4, AgCl, AgBr and Agl are, respectively, 1.1x10-12, 1.8x10-10, 5.0x10-13, and 8.3x10-17. The salt precipitates that last if the AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr, Nal and Na2CrO4 is -
1. | Agl | 2. | AgCl |
3. | AgBr | 4. | Ag2CrO4 |
Which of the following statements is correct for a reversible process in a state of
equilibrium?
1. ΔG = -2.30 RT logK
2. ΔG = 2.30 RT log K
3. ΔG° = -2.30 RT logK
4. ΔG° = 2.30 RT logK