Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Environmental Engineering Solid Waste Management
A solid waste has the chemical equation C50H100O40N. The oxidation equations are given below.
\({{\rm{C}}_{\rm{a}}}{{\rm{H}}_{\rm{b}}}{{\rm{O}}_{\rm{c}}}{{\rm{N}}_{\rm{d}}} + \frac{{4{\rm{a}} + {\rm{b}} - 2{\rm{c}} - 3{\rm{d}}}}{4}{{\rm{O}}_2} \to {\rm{a\;C}}{{\rm{O}}_2} + \frac{{{\rm{b}} - 3{\rm{d}}}}{2}{{\rm{H}}_2}{\rm{O}} + {\rm{d\;N}}{{\rm{H}}_3}\)
NH3 + 2O2 → H2O + HNO3.
(Atomic weights of different elements: C = 12, H = 1, O = 16, N = 14)
The total oxygen required to oxidize completely 1 kg of waste is ______1
1.329 kg
2
1.282 kg
3
0.047 kg
4
None