Question

Each mineral group has a distinct chemical feature, such as
A sulfides are a metal combined with sulfur and oxygen

B oxides are a metal combined with oxygen

C halides are a salt combined with a metallic atom

D phosphates are made of phosphate polygons

Answer 1

I don't see a question here.

Answer 2

D doesn't follow the format of the others

what's in phosphate
.... phosphorus and oxygen