From my studies and knowledge of these courses I've done last year...
Clastic: Examples of this type of sedimentary rock: Shale, Sandstones, Breccia. Clastic rocks are sedimentary rocks formed by the undergo of weathering and it's processes.
Organic and Chemical, while I'm not sure of these two (I believe organic comes from animals, leaves/roots, and or debris) examples of these are coal (Organic) and iron, (Chemical.)
