WorksheetsTHE CHEMICALS OF LIFE
Total questions: 12
Worksheet time: 2mins
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
Which of the following is not true about monosaccharides?
They are sweet tasting
They readily dissolve in water
They are crystallisable
They are non reducing sugars
Which of the following is not a polysaccharide?
Starch
Glycogen
Chitin
Sucrose
