Question

Reagent, 1-naphthylamine and sulfanilic acid in acetic acid is used for the detection of:

• A. $NO$
• B. $N_{2}O$
• C. $N{O}_3^{-}$
• D. $N{O}_2^{-}$

Answer 1

The correct option is D $N{O}_2^{-}$

For detection of $N{O}_2^{-}$ the following test is used.