An Aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom which is bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group.
Berchtesgaden-a town in Bavaria The town of Berchtesgaden is located near Hitler's Eagle's Nest (Kehlsteinhaus) and can be easily reached by train; there are several hotels and it is an inexpensive place for tourists to stay overnight.
Hitler, who disliked heights, rarely visited. But it was a powerful symbol, even visible from the nearby tourist mecca of Knigsee. It was one guest, a French diplomat, who remarked that the building reminded him of an eagle's nest.. The name stuck.