Respuesta :
Answer: The correct answer is option (A).
Explanation:
Given mystery ions:[tex]X^{3+},M^{2-}.Q^{2+},J^-[/tex]
Positive charged ions will form compounds with negatively charged ions.So compounds possible from these ions are:
1) [tex]X^{3+}+M^{2-}\rightarrow X_2M_3[/tex]
2) [tex]Q^{2+}+M^{2-}\rightarrow Q_2M_2=Q_1M_1[/tex]
(Integer in subscript of the ion will get cancelled by dividing with 2.)
3)[tex]X^{3+}+J^{-}\rightarrow XJ_3[/tex]
4) [tex]Q^{2+}+J^{-}\rightarrow QJ_2[/tex]
All the desired compounds enlisted above are possible to be formed. the from the option given the formula would not be correct for an ionic compound will be [tex]Q_2M_2[/tex] that is option (A).
Hence, the correct answer is option (A).
