Question

Explain the following in terms of gain or loss of oxygen with two examples each .
1.oxidation
2.reduction​

Answer 1

Answer:

Oxidation Reaction: It is a chemical reaction in which gain of oxygen or loss of hydrogen takes place. For example in the first reaction copper is oxidised to become copper oxide and in second Magnesium is oxidised to become Magnesium Oxide.

Answer 2

Answer:

Oxidation can also be defined as the gain of oxygen and reduction is the loss of oxygen.

Explanation:

• A mnemonic to remember the difference between oxidation and reduction is OIL RIG.

OIL: Oxidation is loss.

RIG: Reduction is gain.

• Oxidation is the loss of electrons whereas reduction is the gain in electrons.

• An alternative definition is oxidation is the loss of hydrogen molecule while reduction is the gain in hydrogen.

• Oxidation can also be defined as the gain of oxygen and reduction is the loss of oxygen.

For oxidation eg,

C+O₂→CO₂

Fe+O₂→Fe₂O₃

For reduction eg,

F₂+H₂→2HF

Cl₂+H₂→2HCl