Oxidation and Reduction (HSC SSCE Chemistry): Flashcards

Loss of electrons

Gain of electrons

Oxidation Is Loss, Reduction Is Gain (electrons)

Oxidation & reduction always occur together

Causes oxidation of another substance, is itself reduced

Causes reduction of another, is itself oxidised

Oxidation & reduction separately with electrons ($e^-$)

Zero

$+1$ (except in metal hydrides like NaH where it's $-1$)

$-2$ (except in $\text{F}_2\text{O}$ & peroxides)