NAT II Physical Science Chemistry With Answers

NAT II Physical Science Chemistry

Sr. # Questions Answers Choice
1 Acid rains are produced by Excess NO<sub>2</sub> and SO<sub>2</sub>from burning fossil fuels Excess production of NH<sub>3</sub> by industry and coal gas Excess release of carbon monoxide by incomplete combustion Excess formation of CO<sub>2</sub> by combustion and animal respiration
2 Carbon monoxide is pollutant as it Inactivates nerves Inhibits glycolysis Combines with oxygen Combines with hemoglobin
3 SO2 and NO2produce pollution by increasing Alkalinity Acidity Neutrality Buffer action
4 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is Mercury Lead Nitrogen oxide Sulphur oxide
5 Sulphure dioxide affects Cell wall Plasmodesmata All membrane systems Nucleus
6 Cyclone collector is used for minimizing Radioactive pollution Air pollution Noise pollution Water pollution
7 Minamata disease is due to pollution of Organic waste Oil spill in water Industrial waste containing mercury into fishing water Arsenic into the atmosphere
8 Which one is not a pollutant normally? Hydrocarbons Carbon dioxide Carbon monoxide Sulphur dioxide
9 Chief air pollutant which is likely to deplete ozone layer Suphure dioxide Carbon dioxide Carbon dioxide Nitrogen oxides and chloro flrorocarbons
10 Atmosphere of big/metropolitan cities is polluted most by Automobile exhausts Pesticide residue Household waste Radio-active fall out
11 Detergents are Synthetic products Natural products Both A and B None of the above
12 In N.W.F.P the phosphate fertilizers are produced at D.I.Khan Haripur Nowshera Dargai
13 Which of the following nitrogen fertilizer contain more nitrogen NaNO<sub>3</sub> KNO<sub>3</sub> NH<sub>4</sub>NO<sub>3</sub> Urea
14 Natural fertilizer provides potassium in the form of K2O (potash) 1.5 kg 3 kg 4.5 kg 6.5 kg
15 Natural fertilizer provides phosphorus to plants in the form of P2O5 1.2 kg 2.2 kg 3.2 kg 4 kg
Download This Set

Is this page helpful?