Alkyl hydrogen atoms bonded to a carbon atom in a a (alpha) position relative to a carbonyl group display unusually high acidity.While the pK a values for alkyl C-H bonds is typically on the order of 40-50, pK a values for these alpha hydrogens is usually within the range of 19-20.lkyl hydrogen atoms bonded to a carbon atom in a a (alpha) position relative to a carbonyl group display unusually high acidity.
Adventures of Superman was the first television series featuring the comic book superhero Superman. The series, which was syndicated rather than being tied to a network, began filming in 1951, and was first aired on September 19, 1952. The final first-run episode was broadcast on April 28, 1958.
For other uses, see Superman (disambiguation). Superman is a superhero published by DC Comics since 1938. An alien named Kal-El from the destroyed planet Krypton, he was sent to Earth and raised as Clark Kent by human foster parents, Martha and Jonathan Kent. As an adult, Superman became the protector of Metropolis, working at the Daily Planet as Clark Kent along side his partner and wife Lois Lane.