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    Karuvarakkal
    1. The water level does not change when a beaker of nitrogen is inverted over a porous pot containing carbon monoxide because nitrogen is an unreactive gas. 2. The document asks multiple choice questions about gases present in the atmosphere and car exhaust, chemical reactions involving gases, and the function of catalytic converters. 3. Questions cover topics like the gases present in unpolluted air versus car exhaust, the use of chlorine in different applications, the cause of eutrophication in lakes, and the chemical reactions that occur in catalytic converters to break down pollutants in car exhaust.

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    Test

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    Karuvarakkal
    75 views3 pages
    1. The water level does not change when a beaker of nitrogen is inverted over a porous pot containing carbon monoxide because nitrogen is an unreactive gas. 2. The document asks multiple choice questions about gases present in the atmosphere and car exhaust, chemical reactions involving gases, and the function of catalytic converters. 3. Questions cover topics like the gases present in unpolluted air versus car exhaust, the use of chlorine in different applications, the cause of eutrophication in lakes, and the chemical reactions that occur in catalytic converters to break down pollutants in car exhaust.

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    1. The water level does not change when a beaker of nitrogen is inverted over a porous pot containing carbon monoxide because nitrogen is an unreactive gas. 2. The document asks multiple choice questions about gases present in the atmosphere and car exhaust, chemical reactions involving gases, and the function of catalytic converters. 3. Questions cover topics like the gases present in unpolluted air versus car exhaust, the use of chlorine in different applications, the cause of eutrophication in lakes, and the chemical reactions that occur in catalytic converters to break down pollutants in car exhaust.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    75 views3 pages

    Test

    Uploaded by

    Karuvarakkal
    1. The water level does not change when a beaker of nitrogen is inverted over a porous pot containing carbon monoxide because nitrogen is an unreactive gas. 2. The document asks multiple choice questions about gases present in the atmosphere and car exhaust, chemical reactions involving gases, and the function of catalytic converters. 3. Questions cover topics like the gases present in unpolluted air versus car exhaust, the use of chlorine in different applications, the cause of eutrophication in lakes, and the chemical reactions that occur in catalytic converters to break down pollutants in car exhaust.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 3

    TEST 1. A beaker of nitrogen is inverted over a porous pot containing carbon monoxide as shown.

    The water level does not change.

    What is the reason for this? A Both gases are diatomic. B Nitrogen is an unreactive gas. C The gas particles are too large to pass through the porous pot. D The two gases have the same relative molecular mass. 2. How many moles per dm3 of gaseous carbon dioxide are there if 4.4g occupies 500cm3? A 0.1mol / dm3 B 0.2mol / dm3 C 2.2mol / dm3 D 8.8mol / dm3 3. Which gas cannot be removed from the exhaust gases of a petrol powered car by its catalytic converter? A carbon dioxide B carbon monoxide C hydrocarbons D nitrogen dioxide 4. Which gas, present in pond water, decreases in concentration during eutrophication? A carbon dioxide B methane C nitrogen D oxygen 5. Molecules present in car exhaust fumes include carbon dioxide, carbon monoxide, nitrogen, nitrogen dioxide, sulphur dioxide and water. Which of these molecules are also present in unpolluted air? A nitrogen only B nitrogen and water only C nitrogen, carbon dioxide and water only D nitrogen, carbon monoxide, carbon dioxide and water only. 6. Which of the following is not a use for chlorine? A sterilising water B making domestic bleaches

    Cmaking table salt

    manufacturing plastics

    7.The water in a lake showed signs of eutrophication.What could be the cause of this? A B C D increasing the amount of dissolved fertiliser increasing the amount of dissolved oxygen decreasing the amount of dissolved mineral salts decreasing the number of bacteria

    8.A catalytic converter in a car exhaust system changes pollutants into less harmful products. Which change does not occur in a catalytic converter? A carbon dioxide carbon B carbon monoxide carbon dioxide C nitrogen oxides nitrogen D unburned hydrocarbons carbon dioxide and water 9. Which gas can be removed from the exhaust gases of a petrol-powered car by its catalytic converter? A carbon monoxide B carbon dioxide C nitrogen D steam 10.

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