1 Nearly all organic compounds containing multiple bonds connecting two atoms can react with hydrogen in the presence of a catalyst. The hydrogenation of organic compounds (through addition and hydrogenolysis) is a reaction of great industrial importance. The addition of hydrogen is used in the production of edible fats from liquid oils.
Youâve probably heard the word gnarly used to describe something really awesome. But gnarled means rugged, roughened and knotty, like the hands of an old wood carver, as well as the wood he carves. We owe the adjective gnarled and other forms of the word to our friend Shakespeare, who created it in 1603.
Not so cute. The word ghoul originates in the Arabic word âghul,â which refers to an evil spirit that digs up graves and eats the dead. Some confuse ghoul with the word âgremlin,â but the two are not interchangeable. A gremlin does not gorge on the flesh of the dead; it is more a mischievous imp and troublemaker, famous for causing mechanical difficulties in World War II aircraft.