Carbohydrate

Carbohydrates made up of molecules of :

• Carbon and Hydrogen

• Carbon, Hydrogen and Nitrogen

• Carbon, Hydrogen and Oxygen

• Calcium and Magnesium

List THREE (3) Classification of sugar

Example of polysacharides is/are:

• Glycogen

• Starch

• Fibers

• Lactose

MICROCRYSTALLINE

CELLULOSE is a long chain carbohydrate polymer of repeating glucose units. It can be used as

• Thickening agent

• Binder

• Diluent

• Lubricant

X is commonly used in pharmaceutical industry. What are the TWO(2) active chemical constituents of X?

Which of the following qualitative screening is/are the positive inference for lactose?

• Iodine-

  Appearance of brown-red solution

• Molisch's test- Purple ring

• Benedict's test-

  Red precipitate

• Tollen's test-

  No silver mirror

Which of the following is/are TRUE regarding simple carbohydrates?

• The chemical formula is COOH

• Double sugars are simple carbohydrate

• Glucose chemical formula is C₆H₁₂O₆

• Maltose is monosacharide

Which of the following statements is/are TRUE regarding physical and chemical properties of carbohydrates?

• All carbohydrates soluble in water

• Polysacharides has the largest size of particles

• Sucrose is bitter

• Polysacharide made of 2 monomers