ChemistryRates of chemical reactionJAMB
Which of the following reactions is greatly speeded up by light?
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Answer: B. hydrogen and chlorine forming hydrogen chloride
The H₂/Cl₂ reaction is photochemical: light breaks Cl₂ into reactive atoms and can make it explosive.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.