Which metal is extracted from Cinnabar?

Mercury

The correct answer is option 4. Mercury.

Cinnabar is the primary ore of mercury, and the extraction process involves heating the ore to release elemental mercury. The chemical equation for the extraction of mercury from cinnabar (HgS) is as follows:

\[ \text{HgS} \rightarrow \text{Hg} + \text{S} \]

In this process, cinnabar is heated, and it decomposes into mercury vapor and sulfur. The mercury vapor is then condensed and collected, while sulfur is left behind.

It's important to note that mercury is a toxic element, and proper precautions must be taken during its extraction and handling.