JEE Main20205 Sep 2020Morning ShiftChemistryHydrocarbonsActual

The minimum number of moles of O 2 required for complete combustion of 1 mole of propane and 2 moles of butane is..............

Correct answer

Step-by-step solution

(1) Combustion of propane. C 3 H 8   +   5 O 2 g → 3 CO 2 g + 4 H 2 O 1   mole           5   mole (2) Combustion of butane C 4 H 10 + 13 2 O 2 → 4 CO 2 g + 5 H 2 O 1   mole           13 2   mole so total mole of O 2 = 5 + 13 = 18

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