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NEETChemistrys Block Elements

As the atomic number of the alkaline earth metal ion increases, what happens to the solubility of their carbonates in water?

Options

  1. AIncreases
  2. BDecreases
  3. CRemains constant
  4. DFluctuates

Correct answer

B. Decreases

Step-by-step solution

The solubility of alkaline earth metal carbonates in water decreases as the atomic number of the metal ion increases. This trend is due to the increasing cationic size and decreasing charge density as we move down the group.

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