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Yes they will.
Disaccharides will give a positive result much quicker than polysaccharides, and it also depends on the conditions because they need to be dehydrated by an agent such as concentrated H2SO4 and it so happens that it is much easier to do so on a disaccharide than it is on the polysaccharide
What else can I help you with?
Will disaccharides and poly saccharides give a positive result to molisc test?
Yes, both disaccharides and polysaccharides will give a positive result in a Molisch test. The Molisch test detects the presence of any compound containing a significant amount of glycosidic bonds, which are present in both disaccharides and polysaccharides.
Why egg albumin gives the negative result for molisch test?
Egg albumin gives a negative result for the Molisch test because it does not contain carbohydrates. The Molisch test is used to detect the presence of carbohydrates, and since egg albumin consists mainly of proteins with little to no carbohydrates, it does not react with the reagents used in the Molisch test to give a positive result.
Does isomerism exist in disaccharides?
Yes
What is the chemical basis of molisch test?
basis of molisch testMolisch's Test is a sensitive chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde, which condenses with two molecules of α-naphthol, though other phenols (e.g. resorcinol, thymol) also give colored products) resulting in a purple-colored compound (indicated by appearance of a purple ring at the interface between the acid and test layers).
Why dont polysaccharides give a positive test with Fehling's solution?
Fehling test is only suitable for reducing sugars, that means, monosaccharides in its open form with an aldehyd available. Polysacchardes have the aldehydes in a acetal form and they can not react
Will disaccharides and poly saccharides give a positive result to molisc test?
Yes, both disaccharides and polysaccharides will give a positive result in a Molisch test. The Molisch test detects the presence of any compound containing a significant amount of glycosidic bonds, which are present in both disaccharides and polysaccharides.
What is the positive result for molisch test?
all carbohydrates show positive result to Molisch test. this is because Molisch test is used to distinguish carbohydrates from other organic compound.
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
Does coconut oil give positive result on molisch test?
Coconut oil typically does not give a positive result in the Molisch test, as this test is designed to detect the presence of carbohydrates, particularly sugars. Coconut oil is primarily composed of fats and does not contain significant amounts of carbohydrates. Therefore, it generally does not react with the reagents used in the Molisch test.
Why egg albumin gives the negative result for molisch test?
Egg albumin gives a negative result for the Molisch test because it does not contain carbohydrates. The Molisch test is used to detect the presence of carbohydrates, and since egg albumin consists mainly of proteins with little to no carbohydrates, it does not react with the reagents used in the Molisch test to give a positive result.
Why do disaccharides and polysaccharides give positive Molisch Test?
simply because they are carbohydrates, all carbohydrates produces positive result in molisch's test All carbohydrates i.e. monosacchardes, dissacharides and polysaccharides are dehydrated (lose water) by a dehydrating agent (e.g. Sulphuric acid) they form aldehydes known as furfurral. The furfurral reacts with a component known as 1- naphthol present in Molisch reagent resulting in a reddish violet colour forming between the Reagent and the previous mixture of the carbohydrate and thedehydrating agent. It is important to note that the reaction is more rapid with simple sugars or monosaccharides
Is molisch's test is specific test for glucose?
what is the name of result from molisch test
Molisch test is not positive in?
The Molisch test is not positive in substances that do not contain carbohydrates or those that do not readily form a purple complex with α-naphthol in the presence of sulfuric acid. This includes pure fats, proteins, and some non-carbohydrate organic compounds. Additionally, certain modified or degraded carbohydrates may also yield a negative result.
What is a glycoprotein or mucoprotein and how would they respond to the Molisch test?
A glycoprotein or mucoprotein is a type of protein that contains carbohydrate groups attached to it. In the Molisch test, these glycoproteins would give a positive result by forming a purple ring when reacted with alpha-naphthol in concentrated sulfuric acid, due to the presence of carbohydrates in the structure. This is because the test is sensitive to the presence of pentoses, hexoses, and other carbohydrates.
Which category of compounds yields a positive result with Clini-test?
The Clini-test primarily detects reducing sugars, particularly glucose, in urine. Compounds that yield a positive result include monosaccharides and some disaccharides, such as lactose and maltose. These sugars reduce copper ions in the test solution, leading to a color change that indicates a positive reaction.
Does isomerism exist in disaccharides?
Yes
What is the chemical basis of molisch test?
basis of molisch testMolisch's Test is a sensitive chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde, which condenses with two molecules of α-naphthol, though other phenols (e.g. resorcinol, thymol) also give colored products) resulting in a purple-colored compound (indicated by appearance of a purple ring at the interface between the acid and test layers).
