Question: Allene, H2C = C = CH2, has a heat of hydrogenation of 298kJ/mol (71.3 kcal/mol). Rank a conjugated diene, a non-conjugated diene, and an

Allene, H2C = C = CH2, has a heat of hydrogenation of – 298kJ/mol (–71.3 kcal/mol). Rank a conjugated diene, a non-conjugated diene, and an allene in order of stability.

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