When a little brine was added to a metal nitrate a white precipitate was formed…

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Chemistry JAMB 1982

When a little brine was added to a metal nitrate a white precipitate was formed which first turned violet and then black on exposure to ai. The metal nitrate is therefore?

  • sodium nitrate
  • mercuric nitrate
  • lithium nitrate
  • silver nitrate checkmark
  • potassium nitrate

The correct answer is: D

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