Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Environmental Science

Carbon content in a certain type of coal is 0.81. Assume that the combustion efficiency of coal is ~100%, then how much CO2 will be produced on combustion of 1 kg of coal?  

1
-3 kg
2
-5.4 kg
3
-1.8 kg
4
-4.8 kg
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