MY and NY3 , two nearly insoluble salts, have the same K sp values of 6.2 10 -13 at room temperature. Which statement would be true in regard to MY and NY3 ?

1. A. The molar solubilities of MY and NY3 in water are identical.
2. B. The molar solubility of MY in water is less than that of NY3
3. C. The salts MY and NY3 are more soluble in 0.5 M KY than in pure water.
4. D. The addition of the salt of KY to solution of MY and NY3 will have no effect on their solubilities.

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