Causes of Atmospheric Pollution
1. This question has 4 part(s).
1.1. Fossil fuels produce sulfur dioxide when they burn due to containing sulfur impurities.
Sulfur dioxide has many environmental effects such as acid rain so its release should be avoided.
To overcome this issue, three methods are used to ensure it is removed from the other gases formed during combustion:
Dry gas desulfurisation (DG)
Wet gas desulfurisation (WG)
Seawater gas desulfurisation (SG)
Information about the three methods is given in the bar chart in Figure 1 and Table 1.
Figure 1
Table 1
Method | Substances used | Method of obtaining substance | Disposal of waste material |
DG | Calcium oxide | Thermal decomposition of calcium carbonate | Landfill receives solid waste |
WG | Calcium carbonate | Quarrying | CO2 released into atmosphere Solid waste is sold to use in buildings |
SG | Seawater | The sea | Liquid waste goes into the sea |
Evaluate the three methods of removing sulfur from waste gases.
1.2. Sulfur dioxide will dissolve in water.
Explain what colour universal indicator will turn when it is added to the solution.
1.3. All acids contain the same ion.
What is the formula of this ion?
1.4. Hydrochloric acid is a strong acid.
Explain why a strong acid has a low pH.
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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