NEET Chemistry Basicity MCQ Question
Which combination of statements correctly describes the basicity of amines?
The basicity of amines increases with the stability of the cation formed after protonation. 2. Inductive effects are the only factors affecting the basicity of amines. 3. Alkanamines are generally more basic than ammonia. 4. Steric hindrance can decrease the basic strength of amines.
The basicity of amines is solely determined by their molecular weight. 2. More stable cations lead to stronger bases. 3. Solvation effects can influence the basicity of amines. 4. Tertiary amines are less basic than primary amines.
Alkanamines are less basic than arylamines. 2. Basicity is not affected by steric hindrance. 3. The ease of cation formation is crucial for basicity. 4. Inductive effects play a negligible role in basicity.
Primary amines are generally more basic than tertiary amines. 2. The basicity of amines does not depend on cation stability. 3. Alkanamines are more basic than ammonia. 4. Solvation effects do not impact basicity.
Correct Answer
Detailed Explanation
Statement 1 is correct as basicity is related to cation stability. Statement 2 is incorrect since inductive effects are not the only factors; steric hindrance and solvation also play roles. Statement 3 is correct as alkanamines are generally more basic than ammonia. Statement 4 is also correct because steric hindrance can decrease basic strength.
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