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A sample of water from a river was analyzed for the presence of metal ions and the observations were recorded as given below Reagent added Observation dil. HCl No change aq. Na ₂ CO ₃ White precipitate aq. Na ₂ SO ₄ No change The water sample is likely to contain

Options

  1. ABa ²⁺
  2. BCu ²⁺
  3. CLi ⁺
  4. DMg ²⁺

Correct answer

D. Mg ²⁺

Step-by-step solution

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