1st PUC Chemistry Series-3 December 3, 2020December 23, 2020wefru PUC Science 1st Year Chemistry Series-3 quiz 0 Created on December 02, 2020 By wefru 1st PUC Chemistry Series 3 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q21 Which of the following aqueous solution will be the best conductor of electricity? NH3 CH3COOH HCl C6H12O6 2 / 10 Q22 . In 0.10 M aqueous solution of pyridine (C5H5N), find the percentage of pyridine that forms pyridinium ion (C5H5N+H) (Kb for C5H5N = 1.7 x 10-9 ) 56% 0.013% 0.023% 12.65% 3 / 10 Q.23Find the equilibrium constant of the reactionIf the equilibrium constant for the following reactions are given K2K33/K1 K3K22 K455/23 K54 4 / 10 Q.24 5. Highest pH will be recorded for which of the following solutions if they are equimolar BaCl2 CACO3 NA2 NACL2 5 / 10 Q.25The equilibrium constant is 278 for the reactionat the same temperature, what will be the equilibrium constant for the following reaction? 66 x 10-45 6 x 10-5 6 x 10-2 6 x 10-55 6 / 10 Q.26 7. What will be the pH of a buffer solution having an equal concentration of B– and HB (Kb = 10-10 for B–) 4 9 6 0.2 7 / 10 Q.26 7. What will be the pH of a buffer solution having an equal concentration of B– and HB (Kb = 10-10 for B–) 4 9 6 0.2 8 / 10 Q.28On increasing the concentration of reactants in a reversible reaction, then equilibrium constant will unchanged increase decrese depend on concentration 9 / 10 Q.29Find the conjugate acid of NH2– NACL NH4OH NH3 NO3 10 / 10 Q.30 Find the successive elements of the periodic table with ionisation energies, 2372, 520 and 890 kJ per mol respectively He, Li, BeBE He, Ne, CaCl He, Li, NaCl He, Li, H2So4 Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz