Question

Reduction reaction is:

• A. addition of electron
• B. decrease in oxidation state of element
• C. addition of hydrogen
• D. all of these

Answer 1

The correct option is D all of these

Oxidation and reduction in terms of hydrogen transfer:

-Oxidation is loss of hydrogen.

-Reduction is gain of hydrogen.

Oxidation and reduction in terms of electron transfer

-Oxidation is loss of electrons. (Increase in oxidation state)

-Reduction is gain of electrons. (Decrease in oxidation state)