Question

Choose correct option:

• A. Covalency of nitrogen in N₂O₅ is five.
• B. Nitrogen can form dπ- pπ multiple bonds with heavier elements.
• C. For Nitrogen, all oxidation states from +1 to +4 tend to disproportionate in acid solution.
• D. Nitrogen cannot exhibit +5 oxidation state as it cannot form NCl₅.

Answer 1

The correct option is C For Nitrogen, all oxidation states from +1 to +4 tend to disproportionate in acid solution.

Option a)- Maximum covalency of nitrogen is 4.

Option b)- Nitrogen cannot form dπ- pπ multiple bonds with heavier elements.

Option c)- $3HN{O}_2\to HN{O}_3+H_{2}O+2NO$

Option d)- Nitrogen can exhibit +5 oxidation state. E.g. $HN{O}_3$. But it cannot form $NC{l}_5$.