1.

Barbituric acid is a condensation product of A and B. A, B are :

Answer»

`1`. `H_2NCONH_2`, `HO_2C-CO_2H`
`2`. `H_2NCONH_2`, `ClCOCH_3`
`3`. `H_2N-NH_2`, `ClCOCH_2COCl`
`4`. `H_2NCONH_2`, `CLOC CH_2COCl`

SOLUTION :malonyl chloride + UREA ` to` malonyl urea ( Barbituric acid )


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