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Oxidation and reduction - arranging reactions in order

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i) A reacts spontaneously with 1 mol/L BNO3, 1 mol/L D(NO3)2 and dilute 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 dilute sulfuric acid.

iii) C reacts spontaneously with dilute sulfuric acid and with 1 mol/L solutions of all the other metallic salts.

iv) D reacts spontaneously with 1 mol/L BNO3. It does not react with dilute sulfuric acid.

a) Use the observations and arrange the following five reduction half-cell reactions in order, the one with the largest positive reduction potential listed first.

A2 + 2e- A(s)
B+ + e- B(s)
C2+ + 2e- C(s)
D2+ + 2e- D(s)
2H+ + 2e- H2(g)

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Solution Summary

This solution provides a simple explanation as to how to order standard reduction potential.

Solution Preview

The less positive the value of the standard reduction potential (Eo), the more stable the species is and the less easily it ...

Solution provided by:
Amrit Lal Ahuja, PhD (IP)
Education
  • BEng, Allahabad University, India
  • MSc , Pune University, India
  • PhD (IP), Pune University, India
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