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  • Which of the following statements are correct ? (A)   Both   and 

Which of the following statements are correct ?

(A)   Both \mathrm{LiCl}  and  \mathrm{MgCl_{2}} are soluble in ethanol.

(B)   The oxides \mathrm{Li_{2}O} and \mathrm{MgO} combine with excess of oxygen to give superoxide.

(C)   \mathrm{LiF} is less soluble in water than other alkali metal fluorides.

(D)   \mathrm{Li_{2}O}  is more soluble in water than other alkali metal oxides.

Choose the most appropriate answer from the options  given below :

Option: 1

\mathrm{(A)\, and\, (C)\, only}


Option: 2

\mathrm{(A)\,, (C)\, and\, (D)\, only}


Option: 3

\mathrm{(B)\, and\, (C)\, only}


Option: 4

\mathrm{(A)\, and\, (D)\, only}


Answers (1)

best_answer

As we have learnt,

(A)  Both  \mathrm{\mathrm{LiCl}} and \mathrm{\mathrm{MgCl}_{2}} have significant covalent character and are soluble in ethanol

(B)  \mathrm{Li} and \mathrm{Mg}  do not form their superoxide

(C)  \mathrm{LiF} is less soluble in water than other alkali metal fluorides because of high lattice energy

(D)   \mathrm{Li_{2}O} is less soluble in water than other alkali metal oxides because of high lattice energy

Thus, only statements (A) and (C) are correct in the given question.

Hence, the correct answer is Option (A)

Posted by

manish painkra

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