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Do glucose give a positive result for anthrone test?
Yes .
Substances which are ve to anthrone test?
The anthrone test, tests for carbohydrates. The positive indicator is glucose since glucose is one of the most common monosaccarides and is found in many polysaccarides. Anthrone tests positive for fructose, ribose, maltose, and sucrose.
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.
What is an Anthrone test?
An Anthrone Test is a test that discovers the amount of sugar in the given sample. This colorimetric test causes a blue-green color to appear in the sample where sugar is present.
What is the chemical basis of the Anthrone test?
carbohydrates
What is the glucose test result of streptococcus faecalis?
It is positive for the metabolizing of glucose.
What color is positive test result for glucose?
the color of a positive test results is bright green
Is glucose expected to have a positive iodine test?
No, Starch is
Is fehling test positive for gluconic acid?
No. Fehling's test is positive for glucose which forms gluconic acid as the product.
Why sucrose does not give a positive Benedict's test but hydrolyzed sucrose does give a positive beneditcts test?
Sucrose is formed from glucose and fructose.Sucrose is formed from glucose and fructose. Glucose and fructose gives positive test for benedict becuz both of them are reducing sugars whereas sucrose is not a reducing sugar so it gives negative test for benedict. On prolonged heating,sucrose will form glucose and fructose (reducing sugars)which ultimately gives a positive result .
Why is the Benedict test not exclusive to glucose?
The Benedict test will return a positive value for any reducing sugar. It will work with fructose, for example. Benedict solution oxidizes all the reducing sugars such as glucose, galactose and fructose. This implies that a positive result of Benedict's test can be any of the reducing sugars, not necessarily glucose. It will oxidize the carbonyl (which present in all type of sugar classes). So if we get a positive result in the Benedict test, it is not necessarily glucose; it could be galactose or fructose that also a reducing sugar. So Benedict test can't be used to assure glucose.
Would glucose give a positive result with the Biuret test?
No because glucose does not consist of two or more peptide bonds
