

MCQOPTIONS
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1. |
Which of the following statement is not true about composition of biogas? |
A. | It also contains with traces of H2S, N2, H2and CO |
B. | It is composed almost exclusively of methane and carbon dioxide |
C. | Both ( and ( |
D. | It also contains with traces of O2 and Cl2 |
Answer» E. | |