Words that start with 'hy' and contain 'n'

Which word in particular from this list has the highest character count?
The largest word that's possible to derive from this list is 'hydroxydehydrocorticosterone', which contains 28 characters.

What's the total number of words one can put together using this list?
There are 1,143 entries.

In Scrabble, what's the best score possible from this list of words that start with 'hy' and contain 'n'?
Since there are an enormous 1,143 entries, we'd advise going for 'hypozoan' scoring 25 points.

What is a peculiar word from all the word combinations possible ?
Standing as our favorite unusual word on this list is 'hydrazine'. 'Hydrazine' is defined as "Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, h2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with...", according to the English dictionary.

Which word on this page ranks as the most common?
As far as well-known words go, there's 'hymn' which ranks as the 9545^th most popular word.