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    Question

    Dry ice is:

    A Solid nitrogen Correct Answer Incorrect Answer
    B Solid oxygen Correct Answer Incorrect Answer
    C Solid carbon dioxide Correct Answer Incorrect Answer
    D More than one of the above Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    Explanation: Dry ice is the solid form of carbon dioxide (CO₂). It is commonly used as a cooling agent because it sublimates at -78.5°C (-109.3°F), transitioning directly from solid to gas without passing through a liquid phase.

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