Question 44
Nitrogen and its CompoundsWhich of the following derivatives of nitrogen affords an aqueous solution having a pH of less than 7?
- A.N2O
- B.NO
- C.NO2
- D.NaNO3
- E.NH3
Show the answer and explanation
Answer: C (NO2)
Explanation
NO2 is an acidic oxide: it dissolves in water to give nitric and nitrous acids. N2O and NO are neutral, NaNO3 is a neutral salt and NH3 is alkaline.