Uses of Sulfuric Acid (H2SO4)
Uses of Sulfuric acid
What is Aqua Regia? What is it used for?
A mixture of one part of concentrated nitric acid and three parts of concentrated hydrochloric acid is called Aqua Regia. Metals like gold, platinum etc dissolve in Aqua Regia.
What is Fuming Nitric acid?
When nitrogen dioxide (NO2) is dissolved in concentrated nitric acid, this acid is called fuming nitric acid because it always emits fumes under normal conditions. Distillation of starch with concentrated nitric acid produces fuming nitric acid.
Why is concentrated HCl not used in laboratory HNO3 preparation?
Why is concentrated HCl not used in laboratory HNO3 preparation? Reasons for not using dark HCI in laboratory nitric acid preparation: Concentrated hydrochloric acid (HCl) is more volatile than nitric acid. When potassium nitrate and concentrated HCl are mixed and heated, the volatile HCl distils off before HNO3 is formed and accumulates in the receiving
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Why is the colour of HNO3 prepared in the laboratory yellow?
What causes the yellow colour of HNO3? Nitrogen dioxide (NO2) is dissolved in nitric acid prepared in the laboratory, causing the yellow colour of the acid. How to make HNO3 colourless? NO2 is removed by passing dry air or CO2 through the acid at 60°C-70°C. The acid is colourless and transparent.
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What are the causes of the discolouration of the Taj Mahal?
Question: Why is the brightness of historical monuments made of marble stone like the Taj Mahal gradually decreasing? What is the possible remedy? Causes of the discolouration of the Taj Mahal SO2 gas emitted from acid factories located around the Taj Mahal and also SO2 emitted from the Mathura oil refinery oxidizes in the atmosphere
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How the work of Goldsmiths pollutes air and water?
How the work of Goldsmiths pollutes air and water? The work of Goldsmiths pollutes air and water. Copper is mixed as an alloy in gold jewellery. When this jewellery is melted by immersing it in concentrated nitric acid and extracting the alloy, copper reacts with nitric acid to produce blue-green cupric nitrate and brown nitrogen
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Harmful Effects of Acid Rain
When sulfuric acid and nitric acid dissolved in the atmosphere fall on the earth’s surface through rain, it is called acid rain. Following are some harmful effects of Acid rain. Harmful Effects of Acid Rain
What is Acid Rain?
When dissolved sulfuric acid and nitric acid in the atmosphere fall on the earth’s surface through rain, it is called acid rain. H2SO4 is formed from SO2 present in the atmosphere and HNO3 from NO2. SO2 and NO2 commonly enter the atmosphere from vehicle exhaust, thermal power plants, metal extraction, and oil refineries. Harmful Effects
What happens when you boil copper with concentrated HNO3?
What happens when you boil copper with concentrated HNO3? Answer: Heating copper with concentrated HNO3 produces cupric nitrate, nitrogen dioxide and water. Cu + 4HNO3 = Cu (NO3)2 + 2NO2 ↑ + 2H20
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