which of these is a compound?\no o\no co₂\no o₂\no co
which of these is a compound?\no o\no co₂\no o₂\no co
Answer
Answer:
B. $CO_2$
Explanation:
Step1: Define a compound
A compound is a substance made up of two or more different - elements chemically combined in a fixed ratio.
Step2: Analyze each option
- Option A: O represents an oxygen atom, not a compound.
- Option B: $CO_2$ is composed of one carbon atom and two oxygen atoms chemically bonded, so it is a compound.
- Option C: $O_2$ is a molecule of oxygen, which is an element (a di - atomic molecule of the same element), not a compound.
- Option D: Co represents the element cobalt, not a compound.