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The carbonate of which of the following cation is insoluble in water?

Options

  1. ANa +
  2. BK +
  3. CNH 4 +
  4. DCa 2+

Correct answer

D. Ca 2+

Step-by-step solution

Carbonates of alkali metal and ammonium are soluble in water. All other carbonates are insoluble in water.

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