21.下列試劑何者會與尿素(urea)反應而呈色?(A) p-dimethylaminobenzaldehyde(B) tetramethylbenzidine(C) Fast blue B salt
問題詳情
21.下列試劑何者會與尿素(urea)反應而呈色? (A) p-dimethylaminobenzaldehyde (B) tetramethylbenzidine (C) Fast blue B salt (D) phenolphthalein (E) 4-dimethyamino-cinnamaldehyde