Answer: The correct answer is option (A).
Explanation:
Oxidation : A chemical reaction in which addition of oxygen occurs or removal of hydrogen occurs is called oxidation.
Reduction:A chemical reaction in which elimination of oxygen occurs or addition of hydrogen occurs is called reduction.
In a given reaction,:

- The glucose molecule is getting oxidized into carbon-dioxide. Before oxidation in glucose molecule ratio of carbon and oxygen atom was 1:1 which changes to 1:2 after oxidation of glucose into carbon-dioxide.
Hence,
is getting oxidized.
- The oxygen molecule is reduced because addition of hydrogen atoms are taking place in oxygen molecules which gives water after reduction.
Hence,
is getting reduced.
So, correct answer is option (A).
Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
All of them are matter tho
O: 1*2 = 2*1
<span>H 2 + 2 = 2*2 </span>
<span>answer C hope you get it right</span>