1. (5 pts) Which of the following substances is the best reducing agent? Briefly
ID: 561933 • Letter: 1
Question
1. (5 pts) Which of the following substances is the best reducing agent? Briefly explain your answer c) Li+ a) Ag b) Zn d) Ag e) Al 2. (5 pts) Which of the following substances is the best oxidizing agent? Briefly explain your answer. c) H+ b) Li d) Ag e) F2 3. (5 pts) Which of the following substances is the best reducing agent? Briefly explain your answer c) Li+ a) F2 b) Mg2+ d) Na e) Zn 4. (5 pts) Which of the following substances is the best oxidizing agent? Briefly explain your answer. c) Pb2+ a) H+ b) Al3+ d) Li+ e) Al 5. (10 pts) Balance the following reaction in acidic solution and put a box around your final answer. Explain your work and/or reasoning enough that we understand how you got your answer. SO2(aqoC(a)SO4-(aq) +Cl-(aq)Explanation / Answer
1) The best reducing agent is Al .
Because it is the most electropositive metal ,has higest tendency to lose electrons. these electrons reduce the others.
2) the Best oxidizing aent is F2
F is most electronegative element so takes the electrons readilyand oxidises others easily.
3) best reducing agent is Na.
Among the given ones Na is the most electorpositive
Na ----------> Na+ + e readily.
Thus it is best reducing agent.
4) the best oxidising agent among the given is
H+ .
The others are AL+3, Pb+2 and Li+ which do not have any tendency to accept electrons. thus are not good oxiding agents. Al metal has no tendency to accept electrons.
Thus H+ is the one which has this tendenyc
5) the balanced equation is
SO2 + Ocl- + H2O -----------------> Cl- + So4-2 + 2H+
The oxidation half reaction is SO2 + 2H2O -----------> O4-2 + 4H+ + 2e
the reduction half reaction is OCl- +2H+ + 2e -----------> Cl- + H2O
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