Which one or which of

Which of the following is a color?

A. Candy
B. White
C. Book
D. Car

I do not know what is the difference between " which of the following" and "which one of the following" Can anyone help me please?

I do not know [STRIKE]what is[/STRIKE] the difference between "Which of the following ...?" and "Which one of the following ...?" Can anyone help me, please?

Click to expand...

If the question is "Which one of the following ...?", there can be only one correct answer. If the question is "Which of the following ...?, it's possible that there is more than one correct answer.

Thank you so much.

Last question. Are the following questions mean the same and correct?

In which country does he live?
What country does he live in?

Thank you

mrmvp said:

[STRIKE]Are[/STRIKE] Do the following questions mean the same thing, and are they correct?

In which country does he live?

What country does he live in?

Click to expand...

The first would be more natural as "Which country does he live in?" You would use it if you'd been discussing two or more countries and had identified them. For example,
Ben: "Jack lives in Central America."
Madeline: "Really? Which country does he live in?"

The second is a general question that works in any context, provided we know who "him" refers to.

Thank you.

Can I add the proposition "in" two the questions in the beginning ?

1-In what country does he live?
2-In which country does he live?
3-Which country does he live in?

I think two is more formal than three.

mrmvp said:

Thank you.

Can I add the preposition "in" [STRIKE]two[/STRIKE] to the beginning of the first two questions? [STRIKE]in the beginning?[/STRIKE]

1-In what country does he live? :tick:

2-In which country does he live? :tick:

3-Which country does he live in? :tick:

I think [STRIKE]two[/STRIKE] #2 is more formal than [STRIKE]three[/STRIKE] #3.

Click to expand...

Note my corrections above. All three sentences are grammatical and I would agree that #2 is marginally more formal than #3.

Of course, with a multiple choice question (like on a test or in Quiz Planet) there is almost always only one possible chioce.

mrmvp said:

In which country does he live?

Click to expand...

It's perfectly correct, but I would associate it with people older than I/me, and I am in my fifties.