Words that contain 'on' and end in 'n'

Which word in particular on this page has the highest letter count?
Consider 'desoxyribonucleoprotein', which contains 23 characters.

What's a peculiar word on this page of words that have 'on' in and end with 'n'?
There are a number of unusual words on this page, having said that our favorite word currently is 'glonoin'. According to the Oxford dictionary, 'glonoin' is defined as "1. Same as Nitroglycerin; -- called also oil of glonoin. [Obs.] 2. (Med.) A dilute solution of nitroglycerin used as a neurotic.".

What is the highest scoring word in Scrabble available on this page ?
With the number of words to choose from, we'd suggest choosing 'bezonian' scoring 19 points.

What is the most popular word that has 'on' in and ends with 'n' in the dictionary?
We're able to verify that 'condition' is the 856^th most common word.

In total, how many words can one make using the combination specified?
Altogether, there are 1,961 words.