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1 How to Approach Multiple-Choice Questions
You are given 90 minutes to answer 60 multiple-choice questions in section I of the test.
50% of your total score is what this part is worth.
You won't be able to use a calculator in this section, but you will get a periodic table of the elements with a sheet that lists common chemistry formulas.
You get 1 point for a correct answer on the multiple-choice section.
If you leave a question blank or get a question wrong, there is no penalty.
According to the College Board, the multiple-choice section of the AP Chemistry Exam covers more material than any individual student is expected to know.
Nobody is expected to get a perfect score.
You can get answers to all the questions the first time.
Do the questions with little or no math and questions on chemistry topics that you are familiar with.
Don't ask about topics that make you uncomfortable.
Even without a calculator, you may still be expected to crunch a few numbers, so you want to skip the ones that look like number crunchers.
If you want to find the questions easily during the second pass, circle the ones you skip in the test booklet.
Pick out the toughest questions that you have the best chance at after you've done all the easy ones.
The questions near the end of the section are more difficult than the questions at the beginning.
You should keep that in mind, but be aware that each person's experience will be different.
If you can do acid-base questions in your sleep, but you'd rather have your teeth drilled than draw a Lewis diagram, you may find questions near the end of the section easier than at the beginning.
The Two-Pass System is useful because of that.
By using it, you make sure you get to see all the questions you can get right, instead of running out of time because you got bogged down on questions you couldn't do earlier in the test.
People don't run out of time on standardized tests because they work too slowly.
They run out of time because they spend half the test wrestling with two or three questions.
You shouldn't spend more than a few minutes on any question.
If a question doesn't involve calculation, either you know the answer or you don't, you can make an educated guess.
Make a decision and figure out where you stand on the question.
It's probably not worth doing a question that takes more than two minutes to complete.
If you have time to get two correct answers later on, skipping a question early in the section is a good thing.
The multiple-choice section gives you one point for every correct answer.
Guessing randomly doesn't help or hurt you.
Guessing will help you.
A multiple-choice test has a fundamental weakness.
The test makers have to show you the correct answer.
Sometimes seeing the right answer is all you need.
You may be able to identify one or two of the answers that are clearly wrong if you don't know the right answer.
If you want to take an educated guess, you should use Process of Elimination.
You don't know what the correct answer is because two of the compounds are made up, but you know what the wrong answers are.
You know that carbon dioxide and sodium chloride don't turn water purple.
You have a chance of guessing the correct answer if you use POE.
The odds are in your favor.
Remember that you're guessing.
It's pointless to ponder the possible differences between brobogdium rabelide and diblythium perjuvenide.
Pick your favorite letter once you've taken POE as far as you can.
The multiple-choice section is the same as the free-response section.
It was scored by a machine.
There is no credit at all.
The computer doesn't care if you know why an answer is correct.
The computer doesn't care if you blackened in the correct spot on your score sheet.
You get the same number of points for picking (B) because you know that (A) is wrong and that (B) is a nicer letter than (C) or (D) as you would get for picking (B).
You won't be allowed to use a calculator on this section.
There won't be any questions in the section that you'll need a calculator to solve.
Sometimes user-friendly numbers will point you in the right direction.
As you do your calculations, don't be afraid to make rough estimates.
If the answer choices are far enough apart, you can pick the correct answer on a multiple choice test.
The rule against calculators works in your favor because the College Board won't expect you to do very precise calculations by hand.
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