Which of the Following Would Not Convert a Heterogeneous Mixture

question 52

Multiple Choice

Which of the following would not convert a heterogeneous mixture into a more homogeneous material?

• A) filtering a salt solution
• B) magnetically removing iron from an iron-sulfur mixture
• C) filtering sand away from water
• D) picking rice grains from a mixture of rice and peas
• E) doing chromatography on an ink sample

---

Definitions:

CNS

Central Nervous System, which comprises the brain and spinal cord, responsible for processing information and controlling the majority of functions of the body and mind.

Myelin Sheath

The myelin sheath is a protective covering made of fatty substances that surrounds nerve fibers, enhancing the speed and efficiency of electrical signal transmission along the nerve cells.

Action Potential

A rapid rise and subsequent fall in voltage or electrical charge across a cellular membrane, the basis for neural communication and muscle contraction.

Afterpotential

Afterpotential is the transient electrical polarization that follows the action potential in nerve cells or muscle fibers, impacting the cell's excitability.