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SAT Section 1, Module 2 Reading And Writing

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Though Friedel and Crafts discovered a new chemical reaction, this reaction technique was virtually useless to the scientific community because it lacked selectivity. Selectivity causes a reaction to favor one product over another potential product of the reaction. Without selectivity, it is impossible for chemists to ___________ the products of their reaction. Not being able to separate one product from another makes a reaction useless because even a small alteration in a molecule can result in adverse effects. Which choice completes the text with the most logical and precise word or phrase?
Correct Answer:
isolate
Explanation:
Correct answer: isolate

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