Equilibrium questions
1777 published questions with worked solutions.
- In a buffer solution consisting of a weak acid and its conjugate base, the ratio of concentration of conjugate base to acid is...
- Which of the following statements is true regarding acidic strength in aqueous solution?
- The pH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant, Ka of this acid is:
- Baking soda is a/an:
- Sulphanilic acid is a/an:
- Zn salt is mixed with (NH₄)₂S of molarity 0.021 M. The amount of Zn²⁺ remains unprecipitated in 12 mL of this solution (Ksp of...
- pH for the solution of salt undergoing anionic hydrolysis (say CH₃COONa) is given by:
- If Ka for a weak acid is 10⁻⁵. pKb value of its conjugate base is:
- An acid type indicator HIn differs in colour from its conjugate base (In⁻). The human eye is sensitive to colour differences only...
- Which aqueous solution will have pH less than 7?
- pH of a saturated solution of Ba(OH)₂ is 12. The value of solubility product (Ksp) of Ba(OH)₂ is:
- The pH of a solution is 4. The hydrogen ion concentration of the solution if pH is increased to 5 is:
- The pKa of weak acid HA is 4.5. The pOH of an aqueous buffer solution of HA in which 50% of the acid is ionised is:
- To 100 mL of 0.1 M AgNO₃ solution solid K₂SO₄ is added. The concentration of K₂SO₄ that shows the precipitation is, (Ksp for...
- A white salt is readily soluble in water and gives a colourless solution with a pH of about 9. The salt would be:
- A solute undergoes complex formation with ions of sparingly soluble salt, the solubility of salt:
- Ksp of CuS, Ag₂S and HgS are 10⁻³¹, 10⁻⁴⁴ and 10⁻⁵⁴ respectively. Select the correct order for their solubility in water:
- The pH of boiling water (373 K) is ..., (Kw at 373 K=10⁻¹²):
- All Lewis acids are not:
- Which of the following pairs constitutes buffer?
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration