Oxalic Acid, Glycerol At 260° C Gives
Formic Acid.
Allyl Alcohol
Glyceraldehyde
Glyceryl Mono-Oxalate.
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