Question

What type of oxide would Eka-aluminium form?

• A.
• B.
• C.
• D. EO

Answer 1

The correct option is C

Explanation for the correct option:

1. Eka-aluminium is the element which lies after Aluminum in group $13$ .
2. As we know Eka-aluminium belongs to group $13$ so the valance electrons of element are $3$.
3. It can donate $3$ electrons and can go $+3$ oxidation state and oxidation state of oxygen is $-2$.
4. So the formula of oxide of Eka-aluminium is $E_2{O}_3$.
5. Hence option (C) is correct.

Explanation for the incorrect options:

A) $E{O}_3$: Oxidation state of E is $+6$ here which is not possible.

B) $E_3{O}_2$: Oxidation state of E is $+\frac{4}{3}$ here which is again not possible.

D) $EO$: Oxidation state of E is $+2$ which is not possible it only show $+3$ oxidation state.