SOFT COAL
\sˈɒft kˈə͡ʊl], \sˈɒft kˈəʊl], \s_ˈɒ_f_t k_ˈəʊ_l]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.