"What is this article about?"
Translation:Про що ця стаття?
Is "Що ця стаття про" incorrect or not? And in case it is, is the general rule then "no prepositions at the end of words"? :P Thanks.
Prepositions, with the rare exception, precede the noun (or a noun phrase) they refer to. Unlike in English, moving "in", "about" or "for" to the end of the sentence does not make any sense.