please answer these multiple choice questions

31. Citric acid, which is extracted from citrus fruits and pineapple waste, is used extensively in the manufacture of candy and soft drinks. Which of the following is a characteristic of citric acid solution? A. a bitter taste c. the ability to neutralize vinegar B. a sour taste D. the ability to turn litmus from red to blue 32. According to the Bransted-Lowry theory what does an acid do? A. ects as a proton acceptor in any system c. decreases [H ] in an H2O solution B. acts as a proton denor in any system D. increoses [H] in an H2O solution 33. What could be the pH of acid rain? A. 5.0 8. 7.0 c. 9.0 D. 1150 34. Which characteristic is true of an Arrhenius base A. accepts OHin solution C. donates protons in solution B. accepts protons in solution D. releases OHin solution 35. Consider the following equilibrium: CH2COOH(oq)+OClaq)4HOCl(aq)+CH3COO(oq) Identify the stronger acid and predict whether reactants or products are favored at equilibrium. A. CH3COOH stronger, products fovored. c. HOCl stranger, products fovored B. CH2COOH stronger, reactants favored D. HOCl stronger, reactants favored 36. Which statement is true for the following reaction? HCN(aq)+H2O(1)+CN(oq)+H2O(oq) A. HCN is an acid and CN ' is its conjugate bose C. H2O is an acid and HCN is its conjugate base. B. HCN is an acid and H2O is its conjugate base D.H2O is ana cid and H3O is it s conjugate base. 38. What is the approximate pH of a solution that is orange when thymol blue is added? A. 1 B. 2 C. 5 D. 9 39. What volume of 1.20mol/KL. HBr(aq) is required to neutralize 50.0mL of 0.350mol/LKOH ? A. 42.9mL B. 15.6mL c. 14.6mL D. 5.25mL 43. Sodium can be produced by the electrolysis of molten sodium chloride. N electrolysis, sodium ions are attrocted to the electrode where metallic sodium is formed by the gain of electrons. What is the term for the sodium reaction? A. leaching B. neutralization c. oxidation D. reductionO in HNO, 46. In what type of cell are the redox reactions mode to occur by an externally applied electrical current? A. chemical cell B. electrochemical cell C. electrolytic cell D. galvanic cell 47. Given the reaction: 2A1+3Nl22Al3+3Ni What would be the net cell potential, E, for the reaction? A. 1.94V B. 1.42V C 1.94V0.2.58V 48 Which of the following g species are oxidizing agents: K(s),Mn4(aq),F(g),H(g) A. H2(g) enly B. F2(g) and H2(g) c. MnO4(aq) and F2(g)DK(s),MnO(og), and F2(g)