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Determine the type of oxide formed by an elements (A) which has smallest size among following: Li, Na, K, Be, B, Mg Memo…

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Determine the type of oxide formed by an elements (A) which has smallest size among following:

Li, Na, K, Be, B, Mg

Memory Based Question 29/Jan/25 Evening shift

a

\({\mathrm{A}}_{2}{\mathrm{O}}_{3}\)

b

AO

c

\({\mathrm{AO}}_{2}\)

d

\({\mathrm{A}}_{2}{\mathrm{O}}_{2}\)

✓ Correct answer: a)

\({\mathrm{A}}_{2}{\mathrm{O}}_{3}\)

Explanation

The element with the smallest size among Li, Na, K, Be, B, Mg is Boron (B).

Boron forms B2O3 which corresponds to the A2​O3​ type of oxide.

Correct answer: Option A

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