Question

Question #92f22

Answer 1

`CH_2=CHOH`

The IUPAC name of the compound is ethenol

`"A chain of two carbon" ->"stem name"=> eth`

`"suffix of "C=C->"ene"`

`"suffix of "OH->"ol"`

So complete name

`"eth"+"ene"+"ol"=>ethenol`

'e' the last letter of 'ene' is a vowel which is followed by 'ol' that also begins with another vowel 'o'.So vowel 'e' at the end of suffix "ene" is dropped in the final name.