Answer :
Chemical sedimentary rocks are named mostly based on chemistry, whereas clastic sedimentary rocks are named primarily based on particle size.
By sorting, grain size, and shape, clastic rocks are categorised. Chemical sedimentary rocks form when dissolved minerals are dissolved in water. Chemical rocks are categorised mostly based on the minerals that make up the rock.Clastic sedimentary rocks are composed of rock fragments (clasts) from earlier strata. Rock fragments that have become loose due to weathering are then transferred to a basin or depression where silt is confined. When sediment is deeply buried, becomes crushed, and becomes cemented, sedimentary rock is produced. Clastic sedimentary rocks are classified into various groups based on the size of the sedimentary grains and the sorts of rock pieces that make up the sediment.
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