NEETChemistryClassification of Elements and Periodicity in Properties
Three unknown oxides A, B, and C exhibit the following chemical behaviour: Oxide A does not show acidic or basic properties. Oxide B reacts with aqueous NaOH as well as with HCl . Oxide C reacts with water to form a strongly acidic solution. The correct combination of formulas for oxides A, B, and C respectively is:
Options
- AN₂O , Al₂O₃ , SO₃
- BCO₂ , ZnO , Na₂O
- CCO , MgO , SO₃
- DNO , BaO , P₄O₁₀
Correct answer
A. N₂O , Al₂O₃ , SO₃
Step-by-step solution
Oxide A does not show acidic or basic properties, meaning it is a neutral oxide. Examples of neutral oxides include N₂O , NO , and CO . Oxide B reacts with both a strong base ( NaOH ) and a strong acid ( HCl ), which indicates it is an amphoteric oxide. Examples include Al₂O₃ and ZnO . Oxide C reacts with water to form a strongly acidic solution, meaning it is an acidic oxide. Examples include SO₃ (forms H₂SO₄ ) and P₄O₁₀ (forms H₃PO₄ ). Evaluating the options: Option 1: N₂O is neutral, Al₂O₃ is amphoteric, and SO₃