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

Options

  1. AA and C only
  2. BA , C and D only
  3. CB and C only
  4. DA and D only

Correct answer

A. A and C only

Step-by-step solution

(A) Both LiCl   &   MgCl 2 have covalent character so soluble in ethanol. (C) LiF have low solubility due to high lattice energy. So these two statements are correct. And other two statements are wrong. Since, (B) Li and Mg do not form superoxide (D) Li 2 O is least soluble in water than other alkali metal oxides

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