<p>which is correct:</p>
<p>which chapters are the test on?
which chapters is the test on? </p>
<p>thnks</p>
<p>Neither is correct. You never end a sentence with a preposition (on). It should read,</p>
<p>“On which chapters is the test?”
You would not say “are the test” because it is only one test.</p>
<p>Awkward, I know. But grammatically correct. Is that really an SAT question above? If so, I am shocked.</p>
<p>Sunshadow is right, but to make it a sentence that’s well written or at least not awkward, it really ought to read, “Which chapters does the test cover?”</p>
<p>To answer a question like that, first arrange it normally, S then V, like ‘the test is on which chapters?’ </p>
<p>^Obviously that is awkward, but when you rearrange, you keep the S/V the same, so you know you want ‘is’. A choice may be what sunshadow said. And always watch out for prepositions at the end. </p>
<p>^ this may take more time that you would like to spend on a problem, but the problem you stated would probably a harder than average question.</p>