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Question

Oxalic Acid, Glycerol At 260° C Gives


  1. Formic Acid.

  2. Allyl Alcohol

  3. Glyceraldehyde

  4. Glyceryl Mono-Oxalate.

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Solution

The correct option is B

Allyl Alcohol


The explanation for the correct option :

Option B: At higher temperature 260- 280 ° C Glycerol ( Propanetriol) and oxalic acid ( Ethanedioic acid) gives allyl alcohol through dehydration followed by decarbonylation

The explanation for Incorrect options :

Option A: At lower temperatures, formic acid will form but at high temperatures, allyl alcohol (Propenol )will only be the product

Thus this option is incorrect

Option C: Gyceraldehyde will not be the product at this temperature range. Thus option is incorrect

Option D: Glyceryl Mono Oxalate is the very first product that forms at lower temperature but here glycerol dioxalate forms which soon converts to allyl alcohol by elimination of CO2

Thus this option is incorrect


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