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JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization

સૂચિ \(-I\) અને સૂચિ \(- II\) ને યોગ્ય રીતે જોડો

સૂચિ \(I\) સૂચિ \(II\)

\((a)\) બેન્ઝાલ્ડીહાઈડ \((p)\) ચલિત કલા (Mobile phase)

\((b)\) એલ્યુમિના \((q)\) અધિશોષક

\((c)\) એસિટોનાઇટ્રાઇલ \((r)\) અધિશોષિત

A \(a\, \to \,q,\,\,b \to \,p,\,\,c \to r\)
B \(a\, \to \,r,\,\,b \to \,q,\,\,c \to p\)
C \(a\, \to \,q,\,\,b \to \,r,\,\,c \to p\)
D \(a\, \to \,p,\,\,b \to \,r,\,\,c \to q\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(a\, \to \,r,\,\,b \to \,q,\,\,c \to p\)

Step-by-step Solution

Detailed explanation

Acetonitrile is used as mobile phase for most of the reverse chromatography. Benzaldehyde is adsorbed on alumina.

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.

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સૂચિ \(I\)	સૂચિ \(II\)
\((a)\) બેન્ઝાલ્ડીહાઈડ	\((p)\) ચલિત કલા (Mobile phase)
\((b)\) એલ્યુમિના	\((q)\) અધિશોષક
\((c)\) એસિટોનાઇટ્રાઇલ	\((r)\) અધિશોષિત