Question

The correct order for the decreasing acidic strength of oxides of nitrogen is

• A. $N _{2} O _{5}> N _{2} O _{3}> N _{2} O _{4}> NO > N _{2} O$
• B. $NO > N _{2} O > N _{2} O _{3}> N _{2} O _{4}> N _{2} O _{5}$
• C. $N _{2} O > NO > N _{2} O _{3}> N _{2} O _{4}> N _{2} O _{5}$
• D. $N _{2} O _{5}> N _{2} O _{4}> N _{2} O _{3}> NO > N _{2} O$

Answer 1

Answer: (D)

Acidic strength of oxides generally decreases with decrease in oxygen content. Thus, the correct order for decreasing acidic strength of oxides of nitrogen is
$N _{2} O _{5}> N _{2} O _{4}> N _{2} O _{3}> NO > N _{2} O$