On heating with oxalic acid at `110^(@)C` glycerine gives

Glycerol on strongly heating with oxalic acid at 503 K gives :

Glycerol on treatment with oxalic acid at 110^(@) C from :-

Ammonium acetate reacts with acetic acid at 110^(@)C to give

Glycerol on treatment with oxalic acid at 110^(@)C forms

Which of the following statement is correct ? i. Glycerol reaction with oxalic acid at 110^(@)C (383K) and followed by heating and hydrolysis gives formic acid and glycerol. ii. Glycerol on reaction with oxalic at 230^(@)C (503K) and followed by heating gives allyl alcohol. iii. Glycerol on oxidation with dil. HNO_(3) gives a mixture of glyceric and tratonic acid. iv. Glycerol on oxidation with conc. HNO_(3) gives glyceric acid.

With oxalic acid, glycerol at 260^(@) C gives: