Question

Which of the following is not an oxidation-reduction reaction?

Ca + 2 HCl yields CaCl2 + H2
H2 + Cl2 yields 2 HCl
NaCl + LiNO3 yields NaNO3 + LiCl
2 CO + 2 NO yields 2 CO2 + N2

Answer 1

What do you think?

Answer 2

Connections academy?

Answer 3

If you assign oxidation numbers to each chemical, you'll notice that the third one ( NaCl + LiNO3 yields NaNO3 + LiCl) involves no change in oxidation no, and thus no electron transfer (which is the definition of a redox reaction).

In general, though, double displacement reactions are NOT redox reactions, because they involve the transfer of ions rather than electrons.

Answer 4

@hayley3394 Nope, FLVS