Question : Oxides of _____ and _____ dissolve in rainwater and form an acid called acid rain.
Option 1: Phosphorous, Sulphur
Option 2: Sulphur, Nitrogen
Option 3: Carbon dioxide, Methane
Option 4: Calcium, Magnesium
Correct Answer: Sulphur, Nitrogen
Solution : The correct option is Sulphur, Nitrogen.
Oxides of sulphur (SO 2 ) and Oxides of Nitrogen (NO 3 ) dissolve in rainwater, forming sulphuric acid (H 2 SO 4 ) and nitric acid (HNO 3 ). This phenomenon, known as acid rain, has detrimental environmental effects, harming ecosystems, aquatic life and soil quality. It is a consequence of industrial emissions and combustion processes, contributing to environmental pollution.
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