0
What is the basis of the molisch test being used to differentiate aldehydes and ketones from carbohydrates?
Wiki User
∙ 9y ago
The Molisch test uses a color change system to show the presence of aldehydes when interacting with a phenol. A carbohydrate that has been dehydrated will form an aldehyde and thus react with the phenol to form a purple color change. A ketone will not react this way because they do not have a single hydrogen attached to the C=O bond, it has a full hydrocarbon group, making it less likely to oxidize.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Why egg albumin gives the negative result for molisch test?
Molisch's test is used to detect carbohydrates. Egg albumen is free from carbohydrates.
What is the importance of Molisch's test performed on carbohydrates?
Molisch's Test is a chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde. Its importance is that it tests the presence of carbohydrates based on their dehydration,
Why is molisch test used for brain lipid detection?
because there are such types of lipids that have carbohydrates attached to them(glycolipids). that's why Molisch test is used for lipid detection.
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).
What is the composition of molisch test?
molisch reagent is prepared by dissolving 5g of alpha napthol in 100 ml alcohol
Why albumin gives positive Molisch test?
Because it is a carbohydrates and molisch test will be positive in the presence of carbohydrates
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 egg albumin gives the negative result for molisch test?
Molisch's test is used to detect carbohydrates. Egg albumen is free from carbohydrates.
What is the importance of Molisch's test performed on carbohydrates?
Molisch's Test is a chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde. Its importance is that it tests the presence of carbohydrates based on their dehydration,
What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
What is the general test used for carbohydrates?
i think the general test for carbohydrates is Molisch Test..
What is molisch?
Molisch's Test refers to a chemical test used to test for carbohydrate existence. This is done using carbohydrate dehydration with hydrochloric or sulfuric acid to create aldehydes. These condense a couple phenol molecules to produce purple or red compounds.
Why is molisch test used for brain lipid detection?
because there are such types of lipids that have carbohydrates attached to them(glycolipids). that's why Molisch test is used for lipid detection.
What is the purpose of Molisch's test?
Molisch's Test (named after Austrian botanist Hans Molisch) 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 phenol (usually α-naphthol, though other phenols (e.g. resorcinol, thymol) also give colored products) resulting in a red- or purple-colored compound.
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.
What is anthrone test for carbohydrates?
The Antrone test is a general test for carbohydrates (like the Molisch test). Thus, all carbohydrates should yield a positive test (green precipitate) in the anthrone reaction.
When did Hans Molisch die?
Hans Molisch died in 1937.
