maining Time: 26 minutes, 59 seconds. estion Completion Status: UESTION 4 How is

Question

maining Time: 26 minutes, 59 seconds. estion Completion Status: UESTION 4 How is it possible to follow the reduction of an aldehyde by IR spectroscopy? O a watch for the appearance of the carbonyl peak b watch for the disappearance of the hydroxyl peak C watch for the disappearance of the carbonyl peak d it is not possible to follow this reaction by IR QUESTION 5 What role does sodium borohydride have in this reaction? a oxidizing agent e b reducing agent C cdalyst d. It has no role QUESTION 6 aMSiE OA

Explanation / Answer

We can follow for rhe reduction of an aldehyde by IR spectroscopy by looking at the disappearence of an aldehyde peak from around 1700 cm- and appearence of the hydroxyl peak around 3300 cm- beacuse reduction of aldehyde results in the formation of primary alcoholic group.

Sodium hydride acts as a reducing agent in the reduction of aldehyde.

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