Question

Nitroalkanes are obtained in laboratory from primary or secondary alkyl halides by the action of ______.

Options

• AgNO₂

• NaNO₃

• AgNO₃

• HNO₃

Answer 1

Nitroalkanes are obtained in laboratory from primary or secondary alkyl halides by the action of AgNO₂.

Explanation:

Nitroalkanes are made in the laboratory by reacting silver nitrite with primary or secondary alkyl halides (AgNO₂). Nucleophilic substitution reaction is exemplified by this technique of preparation. The following is the reaction:

\[\ce{R \underset{\text{Alkyl hallide}}{Br/R} I + Ag - O - N = O ->[\Delta][Alcohol] \underset{\text{Nitroatkane}}{R-NO2}+ AgBr/Agl}\]

(R can be 1° or 2°)