MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryMole _ Equivalent ConceptChemical Equations and Stoichiometry

What is the weight of oxygen required for the complete combustion of 2.8 kg of ethylene ?

A.2.8 kg
B.6.4 kg
C.9.6 kg✓ Correct
D.96 kg
Explanation

2 4 2 2 2 3 2 2 Ethylene C H O CO H O → (Combustion Reaction) Moles of Ethylene given 0.1 2.8 3 10 28 x 2 10 From reaction, 1 mole of Ethylene requires 3 moles of 2 O 2 10 Moles of Ethylene will require 2 3 10 x moles of 2 O  Weight of 2 O  required 2 3 10 32 x x g 2 96 10 9.6 g x kg The correct option is (c)

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