the presence of which reactant is the best indicator of an oxidation - reduction reaction?\nkno₃\nh₂so₄\nnaoh…

the presence of which reactant is the best indicator of an oxidation - reduction reaction?\nkno₃\nh₂so₄\nnaoh\nh₂

the presence of which reactant is the best indicator of an oxidation - reduction reaction?\nkno₃\nh₂so₄\nnaoh\nh₂

Answer

Brief Explanations:

Oxidation - reduction reactions involve transfer of electrons. Hydrogen gas ($H_2$) is often involved in redox reactions as it can easily lose or gain electrons. $KNO_3$, $H_2SO_4$ and $NaOH$ are not as characteristic of redox reactions as $H_2$.

Answer:

D. $H_2$