UPSC CDS I 2024 GK Paper

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Question : 14 of 120

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The correct order of octane number of butane, pentane, hexane and cyclohexane is

butane > pentane > hexane > cyclohexane
butane > pentane > cyclohexane > hexane
butane > cyclohexane > pentane > hexane
cyclohexane > butane > pentane > hexane

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