19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following is correct? (CPMT 2008)
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 ?
Which is the correct alternate for hydrolysis constant of NH4CN (a) w a K K (b) w a b K K K x (c) b K c (d) a b K K
The aqueous solution of FeCl3 is acidic due to
The dissociation constant of CH3COOH is 1.8 × 10–5. The hydrolysis constant for 0.1 M sodium acetate is
A white salt is readily soluble in water and gives a colourless solution with a pH of about 9. The salt would be
Aqueous solution of sodium acetate is
The pH of 0.1 M solution of the following salts increases in the order :
The aqueous solution of ammonium chloride is
An aqueous solution of sodium carbonate is alkaline because sodium carbonate is a salt of
An aqueous solution of aluminium sulphate would show