Equilibrium questions
1777 published questions with worked solutions.
- An amphoteric buffer solution in which conc. of H^+ and HX is same. The value of K_a of HX is 10^ -8 , then pH of buffer solution...
- The pH of 0.1 M solution of the following salts increases in the order [Guj CET 2004]
- A buffer solution is prepared by mixing equal concentration of acid (ionisation constant K_a) and a salt. The pH of the buffer is...
- Degree of hydrolysis (h) of a salt of weak acid and a strong base is given by [OJEE 2007]
- The pK_a of a weak acid, HA, is 4.80. The pK_b of a weak base, BOH, is 4.78. The pH of an aqueous solution of the corresponding...
- The buffering action of an acidic buffer is maximum when its pH is equal to
- An aqueous solution of sodium carbonate has a pH greater than 7 because [DCE 2003]
- A strong acid is titrated with a weak base. At the equivalence point, pH will be [OJEE 2009]
- A buffer solution has equal volumes of 0.2 M NH_4OH and 0.02 M NH_4Cl. The pK_b of the base is 5. The pH is
- The pH of a buffer solution containing equal molal concentration of a weak base and its chloride (K_b for weak base =2 10^ -5 ) is
- **Statement 1:** The pH of a buffer solution containing equal moles of acetic acid and sodium acetate is 4.8 (pK_a of acetic acid...
- **Statement 1:** For gaseous reaction when n=0, K_P=K_c, n=change in the number of gas moles. **Statement 2:** For gaseous...
- **Statement 1:** NaCl solution can be purified by passage of hydrogen chloride through brine. **Statement 2:** This type of...
- **Statement 1:** Effect of temperature on K_c and K_p depends on enthalpy change. **Statement 2:** Increase in temperature shifts...
- **Statement 1:** On cooling in a freezing mixture, colour of the mixture turns pink from deep blue for a reaction [Co(H_2O)_6]^...
- **Statement 1:** Addition of an inert gas to the equilibrium mixture has no effect on the states of equilibrium at constant...
- **Statement 1:** The aqueous solution of CH_3COONa is alkaline in nature. **Statement 2:** Acetate ion undergoes anionic...
- **Statement 1:** For the reaction, N_2(g)+3H_2(g) 2NH_3(g), unit of K_c is L^2 mol ^ -2 . **Statement 2:** For the reaction...
- In chemical reaction, A B, the system will be known in equilibrium when
- In the equilibrium, AB A+B, if the equilibrium concentration of A is doubled (with [AB] unchanged), the equilibrium concentration...
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