19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The pH of 10–8 M HCl solution is (AFMC 2008)
Calculate the pOH of a solution at 25C that contains 1 x 1010 M of hydronium ions, i.e., H3O+. (AIPMT 2007)
A weak acid, HA, has a K of 1.00 × 10–5. If 0.100 mole of this acid is dissolved in 1L of water, the percentage of acid dissociated at equilibrium is closest to (CBSE AIPMT 2007)
Degree of dissociation of 0.1 N is acid (K 1 10 ) x (CPMT 2006) (a) (b) (c) (d)
The hydrogen ion concentration of a 10M HCl aqueous solution at 298 K w K 10 is (AIPMT 2006)
At 25oC the dissociation constant of a base, BOH, is 1.0×10–12. The concentration of hydroxyl ions in 0.01 M aqueous solution of the base would be (AIPMT 2005)
If 0.1 M of a weak acid is taken and its percentage of degree of ionization is 1.34%, then its ionization constant will be (AFMC 2005)
Neutralization of an acid with a base, invariably results in the production of
At 18ºC, the solubility product of AgCl is 1.8 × 10–10. In the solution, the value of [Ag+] is 4 × 10–3mol/litre. The value of [Cl–] to precipitate AgCl from this solution should be greater than
What is the solubility of calcium fluoride in a saturated solution if its solubility product is 3.2 × 10–11
Ksp for HgSO4 is 6.4 × 10–5, then solubility of the salt is
The solubility product of Ag2CrO4 is 32 × 10–12. What is the concentration of ions in that solution (in g ions L–1)
The least soluble compound (salt) of the following is
The Ksp of CuS, Ag2S and HgS are 10–31, 10–44 and 10–54 respectively. The solubility of these sulphides are in the order
Why only As+3 gets precipitated as As2S3 and not Zn+2 as ZnS when H2S is passed through an acidic solution containing As+3 and Zn+2 ?
The pH of an aqueous solution of Ba(OH)2 is 10. If the Ksp of Ba(OH)2 is 1 × 10–9, then the concentration of Ba2+ ions in the solution in mol L–1 is
Ksp of Mg(OH)2 is 4.0 × 10–6. At what minimum pH, Mg2+ ions start precipitating 0.01 MgCl
The solubility products of different sparingly soluble salts are : 1. XY = 4 × 10–20 2. X2Y = 3.2 × 10–11 3. XY3 = 2.7 × 10–31 The increasing order of solubility is :
A precipitate of AgCl is formed when equal volumes of the following are mixed. [Ksp for AgCl = 10 –10]
The Ksp of Mg(OH)2 is 1 10 x . 0.01 Mg(OH)2 will precipitate at the limited pH
The precipitation takes place only when the product of concentration of ions
If a saturated solution prepared by dissolving Ag2CO3 in water has Ag 2.56 x . What is the value of Ksp for Ag CO ? (a) 83.9 10 x (b) 8.39 10 x (c) 93.8 10 x (d) 9.38 10 x
Some chemists at ISRO wished to prepare a saturated solution of a silver compound and they wanted it to have the highest concentration of silver ion possible. Which of the following compounds, would th…
The solubility of AgI in NaI solution is less than that in pure water, because
What is the minimum concentration of required to precipitate BaSO4 in a solution containing 1.0 × 10–4 mole of Ba2+ ? Ksp for BaSO4 = 4 × 10–10