Preparation Of Amines

To determine the product of the given reaction sequence, we need to carefully analyze the type of reactions involved and the structural changes they impart to the starting material. Without explicit details on the reaction sequence in text form, we'll follow a generic approach for common reaction types typically encountered at this level:

• Step 1: Identify the Functional Groups - Examine the structure of the starting material to identify key functional groups susceptible to chemical reactions, such as alcohol, carboxylic acid, alkene, etc.
• Step 2: Determine Reaction Type - Look for common reactions like oxidation, reduction, substitution, or addition that typically apply to identified functional groups. For example, an alkene might undergo addition reactions, while alcohols might be oxidized to carbonyl compounds.
• Step 3: Predict Structural Changes - Based on the reaction type, predict how the structure of the starting material is altered. Adjust your skeletal formula or structure accordingly by adding or removing atoms/groups as dictated by the reaction mechanisms.
• Step 4: Analyze Reaction Conditions - Conditions such as temperature, pressure, and catalysts can influence the direction or type of reaction, e.g., acidic conditions may promote different pathways compared to basic conditions.
• Step 5: Match with Product Options - Compare your predicted product structure against provided options to select the correct answer.

After analyzing and following this logical approach, the correct product for the given reaction sequence corresponds with the option:

Statement I Explanation: Primary aliphatic amines react with nitrous acid (HNO₂) to form diazonium salts. However, these diazonium salts are unstable at room temperature and tend to release nitrogen gas, leading to the formation of alcohols or other by-products. Therefore, Statement I is correct.

Statement II Explanation: Primary aromatic amines, such as aniline, react with nitrous acid to form diazonium salts. Unlike aliphatic diazonium salts, aromatic diazonium salts are typically stable at low temperatures (around 273 K) but decompose at higher temperatures (above 300 K) to yield phenols or other products. Hence, Statement II is incorrect because the stable nature of these salts is only at lower temperatures, not above 300 K.

Therefore, the correct answer is: Statement I is correct but Statement II is incorrect.