How do you differentiate between glucose solution and sucrose solution?

Answer 1

One way is by polarimeter; glucose and sucrose rotate polarized light in opposite directions. This is assuming your materials are of biological origin and therefore consist of the D-forms of both; if they're synthetic, then all bets are off.

Answer 2

Glucose is a monosaccharide (C6H12O6) while sucrose is a disaccharide made of two monosaccharides glucose+fructose). Glycogen is a polysaccharide from glucose units.

So: the number and composition of monosaccharide molecules varies.

Answer 3

Easy. Just use Benedict's solution. In glucose solution it would give a brick red precipitate. In sucrose solution, there would be NO brick red precipitate. If there is a mixture of sucrose and glucose solution, the the solution would react to give a red solution or perhaps a solution with LESS brick red precipitate than the glucose solution.

When carrying the above procedure, ensure the volume and concentration of the solutions used for the test are constant.

Answer 4

One way to differentiate between glucose and sucrose solutions is by their taste - glucose solution tastes less sweet than sucrose solution. Another way is to test with Benedict's reagent; glucose gives a positive test, forming a red precipitate, while sucrose does not react with Benedict's reagent. Additionally, you can also use a polarimeter to measure the angle of rotation of polarized light passing through the solutions - glucose is dextrorotatory while sucrose is levorotatory.

Answer 5

sucrose is a dimer of glucose and fructose while starch is a polymer of glucose.

Answer 6

its not much of a difference its sugar right?

Answer 7

Sucrose is formed when glucose becomes chemically jointed to fructose.