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Coal and Petroleum Test - 24

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Coal and Petroleum Test - 24
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  • Question 1
    1 / -0
    Which of these is not a fossil fuel or obtained from fossil fuels?
    Solution

    LPG is Liquefied Petroleum Gas, is a constituent of petroleum (a fossil fuel). Coal is also a fossil fuel obtained from earth's crust.

    Biogas is a gas produced from animal waste such as cow dung. It is not a fossil fuel and not obtained from fossil fuels either.

  • Question 2
    1 / -0
    The strong smelling substance added to LPG, to help detect its leakage, is:
    Solution
    LPG gas is basically propane and butane and is odourless in its natural state. The smell that you notice when there is a leak is actually the stench of an entirely different agent, called ethyl mercaptan.
  • Question 3
    1 / -0
    Fossils are mostly present in which of the following rocks?
    Solution
    Sedimentary rocks are made up of grains of sediment that have been weathered from a pre-existing rock or mineral. The grains can be big or small, they are often rounded, and are cemented together in a matrix. Sedimentary rocks may be layered and may also contain fossils.
  • Question 4
    1 / -0
    When steam is passed over hot coke, it produces:
    Solution
    $$C(red\ hot) + H_2O (steam) \rightarrow CO + H_2$$

    Water gas is a fuel gas consisting mainly of carbon monoxide and hydrogen, made by passing steam over hot coke.
  • Question 5
    1 / -0
    Which of the following is an example of fossil fuel?
    Solution
    Fossil fuel is a fuel formed by natural processes, such as the anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis. 
    Natural gas is a mixture of gases that are rich in hydrocarbons. All these gases are naturally found in the atmosphere. 
    Natural gas reserves are deep inside the earth and are fossil fuels. coal gas, coke, and producer gas are the derivatives of coal, not naturally occurring.

    Hence, option $$C$$ is correct.
  • Question 6
    1 / -0
    The chemical added to LPG to help detect its leakages is:
    Solution
    LPG gas is basically propane and butane, and it is odourless in its natural state. The smell that you notice when there is a leak is actually the stench of an entirely different agent, called Ethyl Mercaptan (C2H6S). This substance is added to the gas when it leaves the main storage terminals.
  • Question 7
    1 / -0
    The main constituent of LPG is/are:
    Solution
    LPG constitutes both propane and butane in equal percentage.
    Liquefied Petroleum Gas or LPG (also called Autogas) consists mainly of propane, propylene, butane, and butylene in various mixtures. It is produced as a by-product of natural gas processing and petroleum refining. The components of LPG are gases at normal temperatures and pressures.
  • Question 8
    1 / -0
    Which of the following contains methane, hydrogen and carbon dioxide?
    Solution

    Generally coal mines and coal gas contain carbon monoxide, carbon dioxide, methane, oxygen, nitrogen, hydrogen, and other hydrocarbons.

    Hence, option C is correct.

  • Question 9
    1 / -0
    Which of the following cannot undergo carbonization?
    Solution
    Substances that contain organic matter can undergo carbonization. Minerals do not contain any organic matter and cannot undergo carbonization.
  • Question 10
    1 / -0
    Which of the following is not characteristic of coke?
    Solution
    Coke is a tough, porous and black substance. It is the purest form of carbon. Coke is used in the homes for cooking, heating and in industries, for manufacturing of steel and extraction of many metals. It is also used in thermal power plants to produce electricity.
    Hence, option D is the correct option
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