"What is the continuation of the book?"

Translation: Qual é a continuação do livro?

[ketoacidosis]

Is it wrong to use "O que" instead of "Qual" for the sentence "Qual é a continuação do livro?"

[r_i_l_e_y]

I've never found a good portuguese reference for "o que" vs "qual" but it looks like spanish could be similar in this respect [http://www.youtube.com/watch?v=sdPnfnrASp8]

[ketoacidosis]

That helped me a lot, thank you for sharing!

[gabsim]

Yes, it is wrong. Basically, "o que" = "what" and "qual" = "which". E.g.:

Qual desses você quer? (Which one do you want?) Não entendo o que você quer dizer. (I don't understand what you mean.) O que você quer? (What do you want?)

But we have a few exceptions. E.g.:

What is your name? = Qual é o seu nome?

I don't know how to explain it to you widely. It's one of those things you learn practicing.

[xacparks]

For what it's worth, the Modern Brazilian Portuguese books says to use Qual when you are asking for something from a range of possibilities (Qual e o seu nome / what is your name), and use o que when asking for a definition (O que sao celulas-tronco / what are stem cells.