(relative – introduces a clause / interrogative – used alone)
Translations
lequelPronom interrogatif employé pour choisir parmi un ensemble connu; s’accorde en genre et en nombre : lequel, laquelle, lesquels, lesquelles. Which of these books do you want?
Lequel de ces livres veux-tu ?
The car, which is parked outside, belongs to my brother.
La voiture, qui est garée dehors, appartient à mon frère.
lequelPronom relatif après une préposition ou dans un choix explicite; forme plus marquée et moins fréquente. Relative pronoun used to introduce a clause giving additional information about a noun mentioned previously (non-defining or defining). The laptop, which I bought yesterday, is already malfunctioning.
Interrogative pronoun used to ask for information specifying one or more people or things from a known set. Which is your seat on the plane?
Introduces a nominal clause in indirect questions to indicate a choice between a limited set of options (nominal clause). She asked which path we should take.
(interrogative – used before a noun)
Translations
quelDéterminant interrogatif; s’accorde en genre et en nombre : quel, quelle, quels, quelles. Which movie are we going to watch tonight?
Quel film allons-nous regarder ce soir ?
Interrogative determiner placed before a noun to ask for information specifying one or more items from a known set. Which movie are we going to watch tonight?