June 2017 NY Regents Chemistry Exam
29 Which process requires energy for a nonspontaneous redox reaction to occur? (1) deposition (2) electrolysis
(4) chromatography
(3) alpha decay
Solution: Electrolysis requires energy for a nonspontaneous redox reaction to occur. Alpha decay is a nuclear reaction that produces an alpha particle. Deposition is conversion of gaseous substance into solid. Chromatography is a laboratory technique that separates substances based on their polarity.
Answer: 2
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