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Which of the following is used to determine the relative density of the acid in…

Which of the following is used to determine the relative density of the acid in a car battery?
  • A.
    Hypsometer
  • B.
    Hygrometer
  • C.
    Manometer
  • D.
    Hydrometer
  • E.
    Spectrometer
Correct Answer: Option D
Explanation