23.resorcinol於鹽酸存在下,會使下列何者呈現橘紅色反應?
(A)sucrose
(B)fructose
(C)mannose
(D)lactose
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統計: A(167), B(464), C(101), D(104), E(0) #671466
統計: A(167), B(464), C(101), D(104), E(0) #671466
詳解 (共 3 筆)
#1095397
Seliwanoff’s test :
A test for ketose SUG-ARS in solution. The reagent used consistsof benzene-1,3-diol (resorcinol) dissolved in hydrochloric acid.A few drops are addedto the solution and a red precipitate indi-cates a ketonic sugar. The test is named forthe Russian chemist F. F. Seliwanoff.
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