Question

What is the key characteristic of an oxidation–reduction reaction?

A.Electricity is gained.

B.Electricity is lost.

C.Electrons are exchanged.

D.Electrons are gained.

E.Electrons are lost.

Answer 1

electrons are excharged

Answer 2

The key characteristic of oxidation- reduction reaction is electrons are exchanged ( answer C)

Step-by-step explanation

• Oxidation-reduction reaction is type of reaction that involve a transfer of electrons between two species.

Example of oxidation - reduction reaction is

CH4 +2O2 → CO2 + 2H2O

from reaction above C atom is oxidized from oxidation state -4 to 4.

On the other hand O atoms are reduced from oxidation state of 0 to 2-. therefore there is exchange of electrons between C atoms and O atoms.

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