What is the difference between an aldose and a ketose?
2016年1月23日 · An aldose contains an aldehyde group; a ketose contains a ketone group, The ending -ose tells you that both aldoses and ketoses are carbohydrates. Carbohydrates are just polyhydroxyaldehydes (aldoses) or polyhydroxyketones (ketoses). So, for a carbohydrate to be an aldose it needs an aldehyde group and, to be a ketose, it needs a ketone group. In the …
A positive Seliwanoff's test is obtained with? A] Glucose B
2017年4月4日 · Fructose Seliwanoff’s test is a chemical test which distinguishes between aldose and ketose sugars. A mixture of concentrated HCl and resorcinol of 3ml is added to the sugar. Then the solution is boiled for little time. If it is a ketose sugar like fructose and sucrose is the solution turns cherry red . If it is a aldose sugar then a faint pink color may appear. This …
What is another name for an aldose that contains 6 carbons
2015年10月14日 · A hexose, which is generically a sugar that had six carbons in its straight-chained form. Simply put, "ose" is the suffix for a sugar, and "hex" is the prefix for six. A hexose originally has 6 carbons as a straight-chained molecule, and after being put into water, it rapidly interconverts in an equilibrium between its straight-chained form and its cyclic form. An aldose …