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List I - A) $$\text{NH}_4^+$$, B) $$\text{H}_3\text{O}^+$$, C) $$\text{XeO}_3$$, D) $$\text{SO}_3$$<br>List II - 1) $$sp^3$$ - two lone pairs, 2) $$sp^2$$ - one lone pair, 3) $$sp^3$$ - no lone pairs, 4) $$sp^3$$ - one lone pair, 5) $$sp^2$$ - no lone pairs<br>Correct match is
In $$\text{NH}_4^+$$, N has 4 bond pairs and is $$sp^3$$ with no lone pair (3). In $$\text{H}_3\text{O}^+$$, O has 3 bond pairs and 1 lone pair, $$sp^3$$ (4). In $$\text{XeO}_3$$, Xe has 3 bonds and 1 lone pair, $$sp^3$$ (4). $$\text{SO}_3$$ is $$sp^2$$ with no lone pair on S (5).
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