Half Cell Reactions ?

G lava

New member
Observations:
i) A reacts spontaneously with 1 mol/L BNO3, 1mol/L D(NO3)2 and diluted sulfuric acid. A does not react with 1 mol/L C(NO3)2.
ii) B does not react spontaneously with any of the 1 mol/L solutions above or with diluted sulfuric acid.
iii) C reacts spontaneously with diluted sulfuric acid and with 1mol/L soulutions of all the other metallic salts.
iv) D reacts spontaneously with 1mol/L BNO3. It does not react with diluted sulfuric acid.

a) Use the observations and arrange the following five reduction half cell reactions in order, the one with the largest postivie reduction potential lested first.
A2+ + 2e- --> A(s)
B+ + e- ---> B (s)
C2+ + 2e- --->C(s)
D2+ + 2e- --->D(s)
2H+ + 2e- ----> H2

b) Which metal is the best reducing agent?
c) Which metal is the best oxidizing agent?
 
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