Q1. Assuming the following reaction proceeds in the forward direction, Sr(s) + Cu2+(aq) â Sr2+(aq) + Cu(s) a) Cu2(aq) is oxidized and Sr (s) is reduced. b) Cu (aq) is oxidized and Sr2 (aq) is reduced. c) Sr (s) is oxidized and Cu2 (aq) is reduced. d) Cu(s) is oxidized and Sr (s) is reduced. Q2. What is the oxidation state of molybdenum in Mo04? a) +6 b) +4 c) +7 d) Q3. Which of the following happens when VO2 reacts to form Vo a) VO2* acts as an oxidizing agent. b) The oxidation state of vanadium increases. c) VO2 is reduced. d) The oxidation state of oxygen decreases