# Answer the Following: (I) What is Biuret Test? (Ii) Write a Balanced Equation for the Formation of Biuret. - Chemistry (Theory)

(i) What is biuret test?
(ii) Write a balanced equation for the formation of biuret.

#### Solution

(i)

Biuret test: When urea is heated just above its melting point it forms a compound called biuret which gives a violet colour with dilute copper sulphate solution in alkaline medium.

(ii)

$\ce{\underset{\text{Urea}}{2NH2CONH2} ->[Δ>132°C]\underset{\text{Biuret}}{NH2CONHCONH2} + NH3}$

Concept: Acid Derivatives - Urea -biuret Reaction (Test)
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