IMAT 2014 Q51 Chemistry

Hey! I hope everyone is doing okay :ok_woman:
I don’t know what’s the best approach to this question. Could someone help me, please?
Thank you so much in advance and positive vibes for everyone :low_brightness:

let’s analyze it step by step to see which process fits the best:
process T: When we oxidize primary alcohol we get Aldehyde and on further oxidation we get acid so we need to oxidize primary alcohols in order to get carboxylic acid so, at this stage we can get rid of every answer options except C and E as only those options fits.

compound W: Adding an alcohol to a carboxylic acid forms an ester(known as esterification reaction) recall the bonds formed b/w glycerol and Fatty acids in a triglycerides it’s the same reaction.

Compound X: Adding ammonia to a carboxylic acid forms an amide (-NH-C=O).
Hope it helps:)


A great explanation from Ujjwal, i didn’t know oxidizing a primary alcohol would give an aldehyde, i figured it would be an oxidation like this:
most simple primary alcohol is CH3CH2OH, when it becomes a carboxylic acid CH3CHOOH the oxidation number of C increases so it must be an oxidation

Hope this helps!!!


Thank you so much @Ujjwal, you are so kind :ok_woman:

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Yes! I thought the same, it was the only thing I could figure out but apart of that I was lost. Thank you so much for your reply @Juliette and I wish you the best :low_brightness:

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Hi Juliette!
It’s a good way to look into it and also we are increasing the no. of Oxygen atoms which is a indication for oxidation.
we are not expected to know the oxidation of alcohols in detail but just that:
primary alcohol oxidize to Aldehydes and eventually to Acids.
while, secondary alcohols oxidize to ketones.
tertiary alcohols in fact can’t be oxidized under normal conditions :slight_smile: