Apart from water and salt, are there any inorganic foods?
An overwhelming majority of what we eat is made from plants and animals. This means that composition of our almost entire food is chemicals from the realm of organic chemistry (carbon-based large molecules). Water and salt are two prominent examples of non-organic foodstuffs - which come from the realm of inorganic chemistry. Beside some medicines is there any more non-organic foods? Can we eat rocks, salts, metals, oxides... and I just don't know that?
i wouldn't say that bicarbonate or carbonate are organic, as derivatives of carbon dioxide. protonation state shouldn't change if compound is organic or not
neither is CN-, HCN, HOCN, metal carbonyls, oxalates or oxalic acid. i'd say that phosgene, urea and CCl4 are organic. same goes for higher homologs (HSCN, thiourea, thiophosgene, CS2 and so on)