Solution:
(a) Minerals are naturally occurring metals or their compounds, whereas ores are minerals that contain a large amount of metals that may be extracted successfully.
(b) Mercury.
c) Sodium chloride (NaCl) rock salt
(a) What is the difference between a mineral and an ore? (b) Which metal is extracted from cinnabar ore? (c) Name one ore of sodium. Name the sodium compound present in this ore and write its chemical formula.
(a) What is the difference between a mineral and an ore? (b) Which metal is extracted from cinnabar ore? (c) Name one ore of sodium. Name the sodium compound present in this ore and write its chemical formula.