2. Synthesis

Colloids And Nanoparticles — Quiz

Test your understanding of colloids and nanoparticles with 5 practice questions.

Practice Questions

Question 1

Which of the following phenomena is primarily responsible for the color of gold nanoparticles varying with their size?

Question 2

In the context of colloidal stability, what is the primary role of the electrical double layer (EDL) around a nanoparticle?

Question 3

Consider a spherical nanoparticle with radius $r$. Its surface area is given by $4\pi r^2$ and its volume by $\frac{4}{3}\pi r^3$. If the radius of a nanoparticle is doubled, how does its surface area to volume ratio change?

Question 4

Which of the following 'bottom-up' synthesis methods for nanoparticles involves the controlled growth of particles from atomic or molecular precursors in a solution?

Question 5

What is the primary advantage of using 'microemulsion' techniques for nanoparticle synthesis?