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(B) The solubility of an ionic compound is generally lower in heavy water $(D_2O)$ compared to simple water $(H_2O)$.This is because the dielectric co

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Smaller in heavy water

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(B) The solubility of an ionic compound is generally lower in heavy water $(D_2O)$ compared to simple water $(H_2O)$.This is because the dielectric constant of $D_2O$ ($78.06$ at $298 \ K$) is slightly lower than that of $H_2O$ ($78.39$ at $298 \ K$).Since the solubility of ionic compounds depends on the dielectric constant of the solvent,a lower dielectric constant results in lower solubility.Therefore,the correct option is $(B)$.

An ionic compound is dissolved simultaneously in heavy water and simple water. Its solubility is

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