MCQ
What type of oxide would Eka $-$ aluminium form?
  • A
    $\mathrm{EO}_3$
  • B
    $\mathrm{E}_3 \mathrm{O} 2$
  • $\mathrm{E}_2 \mathrm{O}_3$
  • D
    $\ce{EO}$

Answer

Correct option: C.
$\mathrm{E}_2 \mathrm{O}_3$
Eka $-$ aluminium is in the same group as Aluminum, i.e. Group $13$. Hence, there are $3$ electrons in its outermost orbit.
So, it can lost $3$ electrons to form a bond. Oxygen has $6$ electrons in its outermost orbit which means it can gain $2$ electrons to form a bond.

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