Question No : 84
An element having electronic configuration1s22s22p3s23p? will form
01) Neutral oxide
2) Acidic oxide
3) Basic oxide
4) Amphoteric oxide
Answers
One electron present in outermost s-orbital, so it is a monovalent element.
Hence, the oxide formed will have the chemical formula M
2
O. Such compounds will be basic oxides.
From electronic configuration, it is seen that it has a total of 11 electrons, so it must be Na atom. Oxide of Na atom (Na
2
O) gives 2NaOH in aqueous solution.
Na
2
O +H
2
O ⟶ 2NaOH
Also, according to their basic behavior, they react with acids in typical acid-base reactions to produce salts and water.
Hence, option B is correct.
3) Basic oxide
Explaintation:
One electron present in outermost s-orbital, so it is a monovalent element.
Hence, the oxide formed will have the chemical formula M2O. Such compounds will be basic oxides.
From electronic configuration, it is seen that it has a total of 11 electrons, so it must be Na atom. Oxide of Na atom (Na2O) gives 2NaOH in aqueous solution.
Na2O + H2O ⟶ 2NaOH
Also, according to their basic behavior, they react with acids in typical acid-base reactions to produce salts and water.
Hence, option (3) is correct.