Why should taste NEVER be used as a test to identify an unknown chemical? A. Many acids are both poisonous and corrosive
B. Taste is often misleading.
C. Many acids and bases are poisonous.
D. Many acids and bases are corrosive.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

the correct answer to this question is 2