MCQOPTIONS
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| 1. |
When urea is heated, it forms biurette, alkaline solution of which forms ..... with \[CuS{{O}_{4}}\] solution [AFMC 1980] |
| A. | Violet colour |
| B. | Red colour |
| C. | Green colour |
| D. | Black colour |
| Answer» B. Red colour | |