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C + O2 => _______(a) CO(b) 2CO2(c) 2CO(d) CO3I had been asked this question by my school principal while I was bunking the class.Question is taken from Combustion of Fuels topic in division Steam Power Plant of Energy Engineering

Answer»

Right answer is (c) 2CO

The explanation is: Balanced equation: 2C + O2 => 2CO [Synthesis reaction]

 Oxygen is left in excess, based on the molecular weight, 24KG of carbon combines with 32kg of oxygen forming 56KG of carbon monoxide

24kg of C + 32kg of O2 => 56kg of CO

1kg of C + 4/3kg of O2 => 7/3kg of CO.



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