વાયુમય અવસ્થામાં એમાઇન્સની બેઝિકતાનો ક્રમ કયો છે ?

A \(1^o > 2^o > 3^o > NH_3\)
B \(3^o > 2^o > NH_3 > 1^o\)
C \(3^o > 2^o > 1^o > NH_3\)
D \(NH_3 > 1^o > 2^o > 3^o\)

Verified Solution

Answer & Solution

Correct Answer

(C) \(3^o > 2^o > 1^o > NH_3\)

Step-by-step Solution

Detailed explanation

The correct order of relative basicity of amines in the gas phase is \(3^o > 2^o > 1^o > NH_3\) The alkyl group releases electron and thus, tends to disperse the positive charge of the alkyl ammonium ion and therefore stabilises it. Since, \(NH_4^+\) (from \(NH_3\)) has no such…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

સૂચિ \(I\) સાથે સૂચિ \(II\) ને જોડો.

સૂચિ \(I\) સવર્ગ સંકીર્ણ	List \(II\) અયુગ્મિત ઈલેક્ટ્રોનોની સંખ્યા
\(A\) \(\left[ Cr ( CN )_6\right]^{3-}\)	\(I\) \(0\)
\(B\) \(\left[ Fe \left( H _2 O \right)_6\right]^{2+}\)	\(II\) \(3\)
\(C\) \(\left[ Co \left( NH _3\right)_6\right]^{3+}\)	\(III\) \(2\)
\(D\) \(\left[ Ni \left( NH _3\right)_6\right]^{2+}\)	\(IV\) \(4\)

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