Question

difference between sodium chloride and sodium nitrate

Answer 1

Well, sodium chloride is made up of sodium (Na^+1) ions and chloride (Cl^-1) ions. Sodium nitrate is made up of sodium (Na^+1) ions and nitrate (NO3^-1) ions. That's a huge difference in itself, and makes them entirely different substances. 

Second, nitrate is not an antioxidant - it's an oxidant or oxidizer (just the opposite). Chloride ion is neither strongly oxidizing or reducing

Answer 2

sodium chloride is made up of sodium (Na^+1) ions and chloride (Cl^-1) ions. Sodium nitrate is made up of sodium (Na^+1) ions and nitrate (NO3^-1) ions. That's a huge difference in itself, and makes them entirely different substances.

While, nitrate is not an antioxidant - it's an oxidant or oxidizer (just the opposite). Chloride ion is neither strongly oxidizing or reducing.