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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.
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
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
Do proteins give positive iodine tests?
Yes it give positive result
Will disaccharides and poly saccharides give a positive result to molisc test?
all carbohydrates will give a positive visible result
Did gelatin give positive result with xanthoprotic test?
yes,it give positive test
What are positive and negative controls in an experiment?
Positive controls : an experimental treatment that will give the desired result Negative controls: An experimental treatment that will NOT give the dersired result.
Will superpump250 give a positive drug test result?
No
Why do some lipids and proteins give positive results to molisch test?
Add to 2 cc. of egg-white solution 3 drops of a solution of a-naphthol in chloroform; shake and pour cautiously down the side of the test-tube concentrated sulphuric acid so that two layers are formed. If no color is produced, put the tube aside and examine in a few minutes. If the Molisch test is positive, a carbohydrate is present in the protein molecule
What is a positive test for carbohydrates?
These are the carbohydrate tests that would give a positive result on maltose: 1.Molisch test 2. Fehling's Test 3. Benedict's Test 4. Nylander's Test 5. Tollen's Test 6. Seliwanoff's Test 7. Barfoed's Test
Do glucose give a positive result for anthrone test?
Yes .
Does lactose can give a positive result in xanthoprotein test?
nitration of the benzene ring and gives positive
