A white precipitate was formed when BaCl 2 was added to water extract of an inorganic salt. Further, a gas…

A white precipitate was formed when BaCl2 was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCI. The anion present in the inorganic salt is:
  1. I-
  2. SO32-
  3. S2-
  4. NO2-

Solution

A white precipitate was formed when $BaCl_{2}$ when added to water extract of $SO_{3}^{-2}$ salt, which is an inorganic salt. A white precipitate of $BaSO_{3}$ is formed. Further, a gas $SO_{2}$ with burning sulphur like odour will be released when the $BaSO_{3}$ is dissolved in dilute HCI.

Asked in: JEE Main 2022 (29 Jun Shift 2)

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