Define Key Concepts and Facts about Disaccharides?
1.	All disaccharides contain 2 monosaccharides.
2.	Disaccharides are linked by glycosidic linkage.
3.	If both the functional groups are involved in a linkage the disaccharide becomes a non reducing sugar.
4.	All disaccharides give Molisch's test.
5.	Disaccharides do not give iodine test.
6.	All reducing disaccharides give a positive Fehling's, Benedict's and picric acid test.
7.	Disaccharides can be hydrolysed to monosaccharides by heating with acid.