structurea B) structure b C) structure c none of ich cation in each set is expec

Question

structurea B) structure b C) structure c none of ich cation in each set is expected to have the larger (more negative) hydration energy? L. Mg2+ or Ca2+ II. Lit or Al3+ A) Mg2t in set I and Lit in set I C)Mg2+ in set 1 and Al3+ in setI B)Ca2+ in set 1 and Al3+ in set ll D) Ca2t in set I and Lit in set II lodine, 12(s), is more soluble in dichloromethane, CH2CI2(), than in water because A) the dipole-dipole forces in dichloromethane are much stronger than the dispersion forces in iodine. B) iodine is polar and dichloromethane has a large number of hydrogen bonds C) both iodine and dichloromethane have strong ion-dipole interactions. D) the intermolecular forces are similar in both iodine and dichloromethane.

Explanation / Answer

C)Mg2+ and Al3+ will have high hydration energies(more negative) since hydration energy is inversaly proportional to the size of cation so it increases as tge size of cation decreases.

D)the intermolecular forces are similar in both iodine and dichloromethane .As they both are non polar compunds and since like dissolves like therefore iodine is more soluble im dichloromethane than in water.

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