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      Question

      Which of the following metals is lighter than

      water?
      A Aluminium Correct Answer Incorrect Answer
      B Sodium Correct Answer Incorrect Answer
      C Magnesium Correct Answer Incorrect Answer
      D Manganese Correct Answer Incorrect Answer

      Solution

      Water has a density of 1 g/cm³. Sodium, with a density of 0.97 g/cm³, is lighter than water. Other metals like aluminium, magnesium, and manganese are denser.

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