Question

1. which of the following is not a molecule? a) o₃ b) o₂ c) c d) dna e) h₂o copyright © 2024. mcgraw - hill education. this content was printed for the exclusive use of licensed students.

Explanation:

A molecule is formed by two or more atoms chemically bonded together. Oxygen - ozone ($O_3$), oxygen gas ($O_2$), water ($H_2O$) are molecules. DNA is a large molecule. Carbon (C) is an atom, not a molecule as it is a single - element entity not composed of multiple atoms bonded together.

Answer:

C. C