Without looking them up, rank the following compounds in decreasing order of acidity. These examples represent large classes of compounds that differ widely in acidity.
water, ethanol, 2-chloroethanol, tert-butyl alcohol, ammonia, sulfuric acid, hexane, hex-1-yne, acetic acid
decreasing order of acidity
sulfuric acid < acetic acid < ammonia < ammonia< hexane <hex-1-yne < 2-chloroethano < ethanol