PPSC Chemistry Part V Environmental Chemistry Online Test With Answers

PPSC Chemistry Part V Environmental Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following pollutant result from combustion of fossil fuels. SO2 NOx CO All above
2 Which of the following pollutant results from combustion of fossil fuels. SO2 NO2 CO All above
3 Which of the following statement is not true with respect to hydrocarbons. They are gaseous and liquids They can be saturated or unsaturated They in air by themselves alone cause harmful effects They form photochemical oxidants
4 Which of the following statement is related with CO. It is a colorless and tasteless gas It has less affinity to words hemoglobin It has a boiling point of -192 <sup>o</sup>C It is a dangerous asphyxiant
5 Which of the following statement is no true with respect to nitrogen dioxide. It is produced by the oxidation of NO Its small concentration has been detected to lower stratosphere It is major pollutant It does not absorb sunlight.
6 Which of the following statement is not related with nitric oxide. It is a colorless and odourless gas It is produced largely by fuel combustion It is a brown pungent gas It is oxidized to NO2
7 Which of the following statement is not relevant with nitrous oxide. It is a colorless and odourless gas It is non toxic gas It is present in the atmosphere in higher concentration It has high reactivity in the lower atmosphere
8 Which of the following oxide formed in appreciable quantity in the atmosphere. NO NO2 N2O All above
9 Which of the following gas form weakly acidic sulphurous acid SO2 SO3 NO2 NO
10 Which of the following statement is not relat4ed wiht SO2 It is a colourless gas It has sharp and pungent odour It is moderately soluble in water It is reduced slowly in clear air to H2S
11 Which of the following trace elements may be present in the particulate materials. Cadmium Nickel Mercury Lead All of the above
12 The most harmful components of incomplete combination are generally groped as particulate polyclic matter organic (PPOM) These materials are derivatives of . Benzene Naphthalene Benz a pyrene None of the above
13 Particulate from soil and mineral primarily contains Sodium compounds Calcium compounds Silicon compounds Calcium, aluminum and silicon compounds
14 Which of the following substance is generally not considered an air polutant. CO CO2 SO2 NO2
15 Which of the following pollutant is not secondary pollutnat. SO3 NO2 SO2 Ozone
16 Which of the following pollutant is not primary pollutant. Ash Smoke SO3 SO2
17 Which of the following substance is colloidal in nature. Clay Al2O3 Fe2O3 All above
18 Which of the following substance is a volatile metals. Lead Zinc Mercury Sodium
19 The reduction in ozone layer would lead to Temperature chages Rainfall failure Increase uv radiation on earth All above
20 Chlorofluorocarbon are widely used as coolants in. Air conditioners Clearing solvents Aerosol propellant's All above
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