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A solution of a salt was acidified with HCI when a few drops of BaCI2…

A solution of a salt was acidified with HCI when a few drops of BaCI2 solution were added, a white precipitate was formed. Which of the following anions is present in the salt?
  • A.
    CO2-3
  • B.
    NO3
  • C.
    SO2-4
  • D.
    SO2-3
Correct Answer: Option C
Explanation