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What is the procedure for Benedict's Test?
You must take the testing object, then add Benedict's solution in a test tube. Then in a boiling beaker of water, place the test tube in. Let it sit there and see if there is any color change or precipitated materials.
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i got orange
to detect the presence of reducing sugars
The practical application of Benedict's test is to test a substance for sugar. This could be used to test the sugar content of anything (saliva, urine, etc...).
is a general test for small sugars. Actually, Benedict's Test is a test for simple reducing sugars. Simple Reducing Sugars have an open chain with an aldehyde or ketone group …which loses electrons (becomes oxidised) and reduces the blue Copper (II) ions in the Benedict's reagent to orange Copper (I) ions.
R-CHO + 2Cu2+ + 4OH- ----------> R-COOH + Cu2O + 2H2O where R is the group attached to the aldehyde (CHO)
it indicates that there is a sugar present.
If you need for sugar (glucose) - O || C-H | H- C-OH | OH- C-H + Cu (complex)2+ +2 OH- -----> | H-C-OH | H-C-OH | CH2OH … O || C- O- | H- C-OH | OH- C-H + Cu2O (precipitate) | H-C-OH | H-C-OH | CH2OH
Iodine tests for the presence of starch. It is brownish yellow in color if there is no starch present, and bluish black if starch is present. Benedict's solution is used to …test for the presence of a reducing sugar, changing from its usual color blue to green to brick red if reducing sugars are present. No reducing sugar solution stays blue.
10cc test tube test tube holder alcohol lamp benedict's solution medicine dropper urine specimen
It takes too long for a doctor to perform during a patients consultation. Also the results could be inaccurate if there were any substances left in the test tubes.
Cuso4in the presence of excessive(Oh-)forms cuprous hydroxide which is kept in solution form by the alkali reagent(sodium citrate or Na/K tartrate) this cuprous hydroxide give…s yellow to reddish pippets indicating reduction of sugarType your answer here...
It goes blue if it's negative and orange/red if it's positive.
Benedict's test estimates on color scale the presence of sugar .Normally used as a random pathological chemical test to determine the presence of sugar in urine in diabetes pa…tients.In presence of sugar Benedict's solution turns from blue to shades of yellow,red,brown & dark according to the percentage of sugar present in solution on heating the solution.
its because Benedict's test only gives a possible test for reducing sugars (all monosaccharides, maltose and lactose).
The Benedict's Test uses the Benedict's reagent, named after American chemist Stanley Rossiter Benedict. It's used to test for reducing sugars or other reducing substances…, and uses the color of the solution to determine the presence or absence of the reducing sugars.