The value of pH and pOH of pure water at 25C is approximately: a. 14 b. 7 c. 11014 d. 11014 Equilibrium constant for gaseous equilibrium is represented by: a. K2 b. Kc c. Kx d. Kp Conjugate acid of a very strong base is relatively: a. Very strong acid b. Weak acid c. Very weak acid d. Strong acid Molarity of pure water is: a. 1 b. 18 c. 55.5 d. 6 The suppression of ionization of weak acid or a weak base by adding one of its own ions is known as: a. Buffer action b. Common ion effect c. Buffer capacity d. Ionization effect By adding NH4Cl to NH4OH solution, the ionization of NH4OH : a. Increases b. Decreases c. Remains unchanged d. Increases 100 times pH of tomato is: a. 1.2 b. 4.2 c. 7.2 d. 9.2 When Kc value is small, the equilibrium position is: a. Towards left b. Towards right c. Remains unchanged d. None of these Depression in the freezing point is directly proportional to: a. Molarity of solution b. Molality of solution c. Molality of solvent d. None of these