It's option B.. Number of Mg2+ ions are half that of Cl- as they are in ratio 1:2
hope it helps..
In the aqueous solution of MgCl2 the number of Mg2+ ions is double that of Cl- ions .Reason:-
That is the case because magnesium chloride is soluble in water, meaning that it dissociates completely in aqueous solution.
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The number of electrons in Cl-ion is 17.
1:1 is the answer
no of na+ions contributed for one unit cell in nacl is=4
no of cl- ions contributed for one unit cell in nacl is=4
so 4:4 = 1:1
hope it helps you
2 atoms of na Reacts with 2 atoms of cl to give back where the valency of both is 1
2:1 is the correct answer according to me
total weight of na and cl =23+35.5
no.of na and cl ions present in 117 g = 117 / 58.5
(A) the number of Mg2+ and Cl- ions are equal