Q.

Which of the following statements are correct ?
(A)Both LiCl and MgCl2 are soluble in ethanal.
(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 halides
(D) Li2O is more soluble in water than other alkali metal oxides
Choose the most appropriate answer from the options given below:

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a

(A)and (C) only 

b

(A)and (D) only

c

(A),(C) and (D) only

d

(B)and (C) only

answer is A.

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Detailed Solution

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(i)Both LiCl and MgCl2 have covalent character so soluble in ethanol.
(ii)LiF have low solubility due to high Lattice energy.

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