THE CHEMICALS OF LIFE

Which reagent is used to test for Reducing sugars in the laboratory?

• benedict's solution

• Benedict's solution

• Benedicts solution

• Benedicts' solution

Which of the following is not a reducing sugars?

• Glucose

• Fructose

• Galactose

• Sucrose

Which process is illustrated in this set-up?

• Hydrolysis

• Combination

• Condensation

• None of the above

Which colour confirms little reducing sugars when a food substance with Benedict's solution is heated?

• Red

• Green

• Blue

• Orange

Why are drops of hydrochloric acid added a non reducing sugars during test for non reducing sugars.

• To prevent hydrolysis

• To speed up the rate of condensation

• To remove water

• To speed up the rate of conversion of disaccharide to monosaccharide

Why is sodium hydrogen carbonate solution used when testing for non reducing sugars?

• To convert reducing sugars

• To reduce non reducing sugars to reducing sugars

• To neutralise hydrochloric acid

• For hydrolysis

Name the bond formed between monosaccharides.

• Glycosidic bond

• Gliding bond

• Hydrolic bond

• Hydrogen bond

Name the products of formed when monosaccharides combine.

• Water and hydrogen

• Disaccharide and Water

• Disaccharide and Glucose

• Monosaccharides and Water

What is the formula of monosaccharide

• C₁₂H₁₂O₂₄

• C₆H₁₂O₆

• CHO

• C₁₂H₂₂O₁₁

Which of the following is not a carbohydrate?

• Polysaccharides

• Monosaccharides

• Proteins

• Disaccharides