Rank the following substances in decreasing order of heat of combution (most exothermic `rarr` least exothermic)

Rank the following substances in decreasing order of heat of combustion (most exothermic rarr least exothermic)

Rank the following substances in order of decreasing heat of combustion (maximum rarr minimum)

Rank the following substances in order of decreasing heat of combustion (maximum rarr minimum).

Rank the following alkenes in order of decreasing heats of hydrogenation (large fist )

Rank the following alkenes in order of decreasing heats of hydrogenation (largest first)

Which of the following is exothermic:

Rank the following species in order of decreasing nucleophilicity in a polar protic solvent (most rarr least nucleophilic):