FUNÇÕES INORGÂNICAS - PROVA MARELA - Q 96 - ENEM PPL 2022

INORGANIC FUNCTIONS - YELLOW TEST - Q 96 - ENEM PPL 2022 The troposphere basically consists of N2 and O2, which together comprise 99% of the Earth's atmosphere. Other gases, understood as secondary atmospheric constituents, although present in very low concentrations, can have important or harmful effects on the environment. The table presents the main sources and typical concentrations of some of these secondary gases. The concentrations of one of these secondary gaseous constituents in the atmosphere can be reduced by passing the gases through chemical scrubbers containing a limestone paste, whose main constituent is CaCO3, with the gas being removed by its conversion into a salt (solid ionic compound). SPIRO, T. G.; STIGLIANI, W. M. Environmental Chemistry. São Paulo: Pearson Prentice Hall, 2009 (adapted). BROWN, L.; LeMAY, H. E.; BURSTEN, B. E. Chemistry: the central science. São Paulo: Pearson Prentice Hall, 2005 (adapted). Among the secondary constituents presented, which one can be removed by the action of this chemical purifier? A. Ozone. B. Methane. C. Sulfur dioxide. D. Carbon monoxide. E. Nitrogen monoxide.