Some Basic Concepts of Chemistry - Result Question 32

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

(a) 2.8kg

(b) 6.4kg

(c) 9.6kg

(d) 96kg

[1989]

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Solution:

  1. (c) C2H4+3O22CO2+2H2O

28kg96kg

As 28kg of C2H4 undergo complete combustion by 96kg of O2

2.8kg of C2H4 undergo complete combustion by 9.6kg of O2.



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