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Which of the following reactions does not involve oxidation-reduction? Question 22 options: a) 2Na(s) + 2H2O(l)...

Which of the following reactions does not involve oxidation-reduction?

Question 22 options:

a)

2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

b)

Mg(OH)2(aq) + 2HCl(aq) → MgCl2(aq) + 2H2O(l)

c)

MnO2(s) + 4HCl(aq) → Cl2(g)+ 2H2O(l) + MnCl2(aq)

d)

CH4(g) + 3O2(g)→ 2H2O(g) + CO2(g)

e)

 All are oxidation-reduction reactions.
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