Question

If formula of sodium salt of an anion x is na2x then formula of its aluminium salt would be

Answer 1

answer : Al2X3

explanation : it is given that,

chemical formula of sodium salt of an anion, X is Na2X.

as we know, sodium is singly ionised atom. means, it can loss only one electron from its ground state.

so, oxidation state of sodium ion in salt is +1

so, +1 × 2 + y = 0 ⇒y = -2

it is clear that oxidation state of anion is -2.

now, we have to find out chemical formula of aluminium salt.

we know, oxidation state of Aluminium ion is +3

let r, Aluminium ions compound with q anion salts.

then,+3 × r + (-2)q = 0

or, 3r = 2q

or, r/q = 2/3

so, chemical formula will be A2X3

Answer 2

Answer:

Al2X3 is the answer

Hope it will help you