Question

What happens when urea added or mixed with oxalic acid. What is the observation and equation?

Answer 1

$\huge\sf\red{ANSWER}$

When urea is heated gently then it gives solid residue biuret which gives violet colour with NaOH & CuSO4 solution. ... When it reacts with oxalic acid , white precipitate of urea -oxalate is formed.From urine – A hot solution of oxalic acid is added to conc. urine, urea oxalate precipitated out. It is then boiled with an aqueous suspension of calcium carbonate which liberates urea and insoluble calcium oxalate precipitates out.

Chemical Formula of Oxalic Acid (COOH)2

Molecular Formula of Oxalic Acid C2H2O4

Explanation:

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