Which of the Following Pure Substances Has the Highest Normal

question 33

Multiple Choice

Which of the following pure substances has the highest normal melting point?

• A)P₄O₁₀
• B)P₄O₆
• C)CO₂
• D)CaO
• E)Na₂O

---

Definitions:

Phenotype

The set of observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.

Extra Chromosome

An additional chromosome in the genetic makeup of an individual, which can lead to various developmental and physical disorders.

Down Syndrome

A genetic disorder caused by the presence of an extra 21st chromosome, leading to developmental and physical changes.

Turner Syndrome

A chromosomal disorder affecting females, characterized by the partial or complete absence of one X chromosome, leading to various developmental issues.