Amorfo

The video discusses the nature of crystalline networks, using glass as an example. Although glass appears similar to quartz, it is fundamentally different on a molecular level due to its lack of repeating three-dimensional structures.

What is an example of a neat crystalline network mentioned in the video?

• Quartz

• Glass

• Diamond

• Salt

At first glance, glass is similar to which of the following?

• Graphite

• Salt

• Quartz

• Diamond

On a molecular level, how does glass differ from quartz?

• It is made of different elements.

• It lacks a repeating three-dimensional structure.

• It has a repeating three-dimensional structure.

• It is more transparent.

Which of the following is true about the molecular structure of glass?

• It is composed of organic molecules.

• It lacks a repeating three-dimensional structure.

• It has a neat crystalline network.

• It is identical to quartz.

Why is glass not considered a crystalline solid?

• It lacks a repeating three-dimensional structure.

• It is made of metal.

• It does not have a neat crystalline network.

• It is not transparent.