TS EAMCET Environmental Chemistry — practice questions
59 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAMCET Environmental Chemistry in the app →Rain is classed as acid rain when its pH falls below which value?Which pair of gases is mainly responsible for acid rain?Unpolluted rain is slightly acidic because of which dissolved acid?In which Indian city was acid rain first reported, in 1974?Which Indian monument is a popular example of acid rain's corrosive effect?Acid rain strips soil of which plant-growth nutrients?Dissolving CO2 in rainwater forms which compound?Which natural atmospheric event can produce nitric acid?What pH range is described as neutral for most water, including drinking water?Polluted London air was noted in the 17th century to corrode which stones?SO2 and NOx react with atmospheric water to give which acids?Which gas is the most important cause of acidification?Which source emits most of the world's SO2 causing acidification?In which atmospheric layer is the ozone layer found?The ozone hole is observed mainly over which region?Which group of manufactured compounds mainly causes ozone depletion?The ozone layer protects life by blocking which harmful radiation?Thinning of ozone is projected to increase which eye disease?Which international treaty controls ozone-depleting substances?In which unit is total column ozone expressed?Ozone forms when O2 absorbs which type of photon?A chlorine atom reacting with O3 forms ClO and which other product?A single chlorine atom can destroy about how many ozone molecules?What role do Cl and Br atoms play in ozone destruction?Per atom, how does bromine compare with chlorine at destroying ozone?Polar stratospheric clouds form more readily under which condition?CFCs were commonly used as which of these?Why can CFCs travel up to the stratosphere intact?Which compound is a reservoir that removes chlorine from the ozone cycle?Loss of stratospheric ozone leads to what temperature change there?How many oxygen atoms does one molecule of ozone contain?The word smog is a blend of which two words?Which city is the classic example of photochemical smog?Photochemical smog is commonly known by which other name?Photochemical smog forms from sunlight acting on which pollutants?Peroxyacetyl nitrates (PANs) in smog are mainly harmful as what?Which gas did Haagen-Smit identify in Los Angeles smog in 1948?Sunlight splits NO2 into NO and which species?Which farm practice aggravates smog severity in Delhi?Smoke from burning coal contributes mainly to which type of smog?What were London's coal-caused smogs nicknamed?Greenhouse gases are infrared active. They absorb and emit which radiation?Which gas comes right after water vapour among the most abundant greenhouse gases?Why do N2 and O2 hardly affect infrared radiation?Without greenhouse gases, Earth's mean surface temperature would be about what?Which greenhouse gas is the most important overall yet not directly altered by humans globally?Water vapour has a residence time in air of about how long?Carbon dioxide emissions cause roughly what share of global warming?Most human CO2 emissions come from which activity?Over 20 years, a mass of methane's warming effect is about how many times that of CO2?Since 1750, human activity has raised atmospheric methane by about what?Fertiliser nutrients leaching into water courses can cause what?In water quality testing, what does BOD stand for?Which branch aims to reduce pollution at its source?The soil or organism affected by a pollutant is called what?A chemical medium that retains a pollutant, such as a carbon store, is called what?Many PAHs from oil spills are harmful because they are what?A substance present in nature above fixed levels, or that should not be there, is called what?Which instrument is used to assay radioactive materials in the environment?