[{"id":110895,"question":"When electric current is used to carry out non-spontaneous redox, the process is called","choices":[{"text":"Hydrolysis","value":"A"},{"text":"Electrolysis","value":"B"},{"text":"Decomposition","value":"C"},{"text":"Neutralization","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110892,"question":"The reaction is galvanic cell is","choices":[{"text":"Spontaneous","value":"A"},{"text":"Non-spontaneous","value":"B"},{"text":"Acid-base","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110890,"question":"When fused PbBr<sub>2</sub>is electrolyzed","choices":[{"text":"Bromine appears at he cathode","value":"A"},{"text":"Lead is deposited at the cathode","value":"B"},{"text":"Lead appears at the anode","value":"C"},{"text":"None of these happens","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110888,"question":"If the salt bridge is not used between two half cells, then the voltage","choices":[{"text":"Decrease rapidly","value":"A"},{"text":"Decrease slowly","value":"B"},{"text":"Does not change","value":"C"},{"text":"Drops to zero","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110886,"question":"The electrode through which the electrons enter the electrolytic solution is electrolytic solution is","choices":[{"text":"Anode","value":"A"},{"text":"Cathode","value":"B"},{"text":"May be anode or cathode","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110884,"question":"Which of the following statements is true about Galvanic cell","choices":[{"text":"Anode is negatively charged","value":"A"},{"text":"Reduction occurs at anode","value":"B"},{"text":"Cathode is positively charge","value":"C"},{"text":"Reduction occurs at cathode","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110882,"question":"The cathodic reaction in the electrolysis of dill H<sub>2</sub>SO<sub>4</sub>with Pt electrodes","choices":[{"text":"Reduction","value":"A"},{"text":"Oxidation","value":"B"},{"text":"Both oxidation and reduction","value":"C"},{"text":"neither oxidation or reduction","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110880,"question":"In the presence of copper electrodes the electrolysis of aqueous CuSO<sub>4</sub>produces at cathode","choices":[{"text":"H<sub>2</sub>gas","value":"A"},{"text":"O<sub>2</sub>gas","value":"B"},{"text":"SO<sub>2</sub>gas","value":"C"},{"text":"Cu metal","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110879,"question":"Strong oxidizing agents have","choices":[{"text":"Greater positive value of standard reduction potential","value":"A"},{"text":"Lesser positive value of standard","value":"B"},{"text":"Greater negative value of standard","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110878,"question":"","questionImage":"110878_636317386140558243-RQ.jpg","choices":[{"text":"Zn","value":"A"},{"text":"H","value":"B"},{"text":"S","value":"C"},{"text":"O","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110877,"question":"Matals usually conduct electricity because","choices":[{"text":"There are mobile electrons in the metallic structure","value":"A"},{"text":"Metals are decomposed by current","value":"B"},{"text":"Metals have high resistance","value":"C"},{"text":"In metals the ions are free to move","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110876,"question":"A cell in which spontaneous redox reaction generates an electric current is called","choices":[{"text":"Electrolytic cell","value":"A"},{"text":"Electrochemical cell","value":"B"},{"text":"Voltaic or Galvanic cell","value":"C"},{"text":"Biological cell","value":"D"},{"value":"E"}],"correctAnswer":3}]