Question

1.
Which of these chemical reactions is an
oxidation-reduction reaction?
A) Fe + S→ FeS
B) CO, + H20→HCO,
C) AgNO, + NaCl → AgCl + NaNO,
D) H, SO, + 2NaOH → Na SO, + 2H2O​

Answer 1

Answer:

A and B are oxidation or C and D are reduction