19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
When HCl gas is passed through a saturated solution of common salt, pure NaCl is precipitated because
At 298 K, the solubility product of PbCl2 is 1 10 x . What will be the solubility of PbCl2 in moles/litre
Solubility of AgCl will be minimum in
Solubility product of BaCl2 is 4 × 10 –9. Its solubility in moles/litre would be
The correct representation for solubility product of SnS2 is
Which is the correct representation of the solubility product constant of Ag2CrO4
The solubility of CaF2 is ‘s’ moles/litre. Then its solubility product is........
The solubility in water of a sparingly soluble salt AB2 is 1.0 × 10 –5moll –1. Its solubility product number will be
Let the solubility of an aqueous solution of Mg(OH)2 be x then its Ksp is
The solubility product of a salt having general formula MX2, in water is : 4 × 10 –12. The concentration of M 2+ ions in the aqueous solution of the salt is
0.1 M solution of which one of these substances will react basic ?
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
Assertion: Addition of HCl(aq.) to HCOOH(aq.) decreases the ionization of HCOOH. Reason: Common ion effect of H+ ion, reduces the ionization of HCOOH.
Assertion (A): H2SO4 acts as a base in the presence of HClO4. Reason (R): Perchloric acid is stronger acid than H2SO4.
The solubility products of MA, MB, MC and MD are 1.8 × 10–10, 4 × 10–3, 4 × 10–8 and 6 × 10–5 respectively. If a 0.01 M solution of MX is added dropwise to a mixture containing A–, B–, C– and D– ions then t…
Ksp of Mg (OH)2 is 1 × 10–12. 0.01 M Mg (OH)2 will be precipitating at the limiting pH :
Calculate the concentration of H+ ion in mol/L of 0.010M solution of NH4Cl? (Kb = 1.8 × 10–6)
The correct order of increasing [H3O+] in the following aqueous solution is:
H S aq H aq HS aq ;K 9.5 10 x HS aq H aq S aq ;K 1.0 10 x Given the equilibrium constants provided what is the equilibrium constant for the reaction: S (aq) 2H (aq) H S(aq) K = ?
How many milliliters (mL) of a 0.0500 M NaOH (a strong base) solution should be added to 1.00 L of 0.100 M H3PO4, solution to produce a buffer of pH = 2.00 ? For H3PO4, a K = 6.67 × 10–3 Given: H P…
How many milliliters of 0.250 M NH4Cl would have to be added to 450 mL of 0.350 M KOH in order to produce a buffer solution with a pH of 9.10? (Kb(NH3) = 1.8 × 10–5)
Which pair of reagents, mixed in the appropriate proportion, could make a buffer in pH 3-4 range ?
A buffer is prepared by adding 0.30 mol CH3COONa to 2.0 L of a 0.10 M CH3COOH solution. Calculate the eq K /c (x y) eq K c/(xy) 1/(x y) x y 1 x y eq K /c x y eq K /xyc pH after 0.030 mol HCl are …