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The Molisch test detects carbohydrates by breaking them down to monosaccharides. Disaccharides need to be hydrolyzed into their constituent monosaccharides before they can react with the Molisch reagent, which makes the test slower compared to monosaccharides that can react directly.
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Why does glycoproteins reacts positively with Molisch reagent?
Glycoproteins give positive results for Molisch's test. This answer is true because Molisch test was a test for sugar.
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
Will a deoxy ribonucleic acid give a positive molisch test?
No, deoxyribonucleic acid (DNA) will not give a positive Molisch test. The Molisch test is a carbohydrate test that detects the presence of sugars, which are polysaccharides or monosaccharides. Since DNA is a nucleic acid composed of nucleotides, not carbohydrates, it does not react positively in this test.
What is the chemical basis for a positive test in Molisch's test?
See this link.
What group of substance that give positive reaction to molisch test?
Carbohydrates typically give a positive reaction to the Molisch test. This is because the Molisch reagent reacts with the carbohydrates to form a purple complex, indicating the presence of sugar molecules in the solution.
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.
Will disaccharides and polysaccharides give positive result for molisch test?
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
Is molisch's test is specific test for glucose?
what is the name of result from molisch test
Why does glycoproteins reacts positively with Molisch reagent?
Glycoproteins give positive results for Molisch's test. This answer is true because Molisch test was a test for sugar.
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.
Why albumin gives positive Molisch test?
Because it is a carbohydrates and molisch test will be positive in the presence of carbohydrates
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
Name the 2 tests of carbohydrates anaylsis that are based on the reduction of Copper ions.Select one:a. Benedict’s and barfoed’s testb. Barfoed’s test and molisch testc. Molisch test and iodined. Salivanof and osazonee. Benedict’s and iodine test?
Molisch Test and iodine.
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 all sugar give a positive molisch's test?
All sugars give a positive Molisch's test because they contain hydroxyl (–OH) groups that can react with α-naphthol in the presence of sulfuric acid. This reaction leads to the formation of a purple-colored complex, indicating the presence of carbohydrates. Both monosaccharides and disaccharides, which are classified as carbohydrates, can participate in this reaction, resulting in a positive test. Thus, the test serves as a general indicator for the presence of sugars.
Explain the different results obtained from molisch test and Benedict test?
The Molisch test is a general test for carbohydrates, detecting the presence of all monosaccharides and some disaccharides through the formation of a purple ring when a carbohydrate solution is mixed with alpha-naphthol and concentrated sulfuric acid. In contrast, the Benedict test specifically identifies reducing sugars, such as glucose and fructose, which can reduce copper(II) ions to copper(I) oxide, resulting in a color change from blue to green, yellow, or red depending on the sugar concentration. Thus, while both tests indicate carbohydrate presence, the Molisch test is broader, whereas the Benedict test is specific to reducing sugars.
What is the chemical basis for a positive test in Molisch's test?
See this link.
