Question

States if the following reactions are oxidation or reduction reactions.

1) Cl-1 → Cl



2) Sn4+ → Sn2+




3) Fe → Fe3+



4) S2- → S



5) N3- → N1-




6) Mn2+→ Mn4+




7) O → O2-


please answer​

Answer 1

Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion. Reduction is the gain of electrons or a decrease in oxidation state by a molecule, atom, or ion.

Here,

Sn

4+

+2e

−

→Sn

2+

Sn

+4

accepts two electrons and forms Sn

+2

so its a reduction process.