CUET · CHEMISTRY · PYQ PAPER 2023
Certain Aldehydes, Ketones and certain alcohol undergo iodoform test. Certain Aldehydes ketones undergo aldol condensation. While certain aldehydes undergo Cannizaro's reaction. Aldehydes responds to tollen reagent and fehling reagent test.
When \(CH_3CHO\) and \(HCHO\) are created with \(NaOH\ (aq)\), one of the product is found to be

The number of times aldol condensation and number of times Cannizzaro's reaction occur to produce the product 
- A 1, 3
- B 3, 1
- C 2, 2
- D 1, 1
Answer & Solution
Correct Answer
(B) 3, 1
Step-by-step Solution
Detailed explanation
\(CH_3CHO + HCHO \xrightarrow{OH^-} HOCH_2CH_2CHO\) (Aldol addition 1) \(HOCH_2CH_2CHO + HCHO \xrightarrow{OH^-} (HOCH_2)_2CHCHO\) (Aldol addition 2) \((HOCH_2)_2CHCHO + HCHO \xrightarrow{OH^-} (HOCH_2)_3CCHO\) (Aldol addition 3)…
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