date:Sep 07, 2012
ning sugar, urea gives the smell of ammonia.
Non-permitted yellow colour
About 5ml of water containing sugar is taken in a test tube, and a few drops of concentrated HCl is added to it. If the lower layers of the acid turn pink, it indicates the presence of non-permitted colour.
Honey
A cotton wick is dipped in pure honey. Upon lighting it with a matchstick, it will burn and show the purity of honey. The presence of water (one of the two ingredients in a sugar solution) will not allow the hone