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Which of the following statements are correct? (A) Both LiCl and MgCl2 are soluble in ethanol. (B) The oxides Li2O and MgO combine with excess of oxygen to give superoxide. (C) LiF is less soluble in water than other alkali metal fluorides. (D) Li2O is more soluble in water than other alkali metal oxides. Choose the most appropriate answer from the options given below: (1) (A) and (C) only (2) (A), (C) and (D) only (3) (B) and (C) only (4) (A) and (D) only

1. (A) and (C) only
2. (A), (C) and (D) only
3. (B) and (C) only
4. (A) and (D) only

Correct answer: (A) and (D) only

Solution

Option (A) is correct because both LiCl and MgCl2 are known to dissolve in ethanol due to their ionic nature and the ability of ethanol to stabilize ions. Option (D) is also correct as Li2O is more soluble in water compared to other alkali metal oxides, which is attributed to the smaller size and higher charge density of lithium, enhancing its interaction with water.

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