Words that contain 'c' and end in 'h'

What is an unusual word on this list of words that have 'c' in and end with 'h'?
We feel that 'chromolithograph' to be the most unusual word. According to the Oxford dictionary, 'chromolithograph' is defined as "A picture printed in tints and colors by repeated impressions from a series of stones prepared by the lithographic process.".

Which word that has 'c' in and ends with 'h' is the most common word?
We've discovered that 'which' is the 25^th most common word.

What is the highest scoring word you can play in Scrabble ?
With a sizeable 1,967 entries, we'd recommend choosing 'chutzpah' scoring 27 points.

What is the largest word you can assemble from the combination searched for?
'Photospectroheliograph' is the longest word that Dictionarypedia could locate.

What's the maximum number of words you could create using this list?
From this page of words that contain 'c' and end in 'h', there are 1,967 effective combinations which are possible.