NON-REDUCING SUGARS + TEST

Question 1

WHAT ARE NON-REDUCING SUGARS?

Answer 1

SOME DISACCHARIDES

Question 2

WHAT IS AN EXAMPLE OF A NON-REDUCING SUGAR?

Answer 2

SUCROSE

Question 3

HOW DO YOU TEST FOR A NON-REDUCING SUGAR?

Answer 3

MUST BE BROKEN DOWN INTO ITS MONOSACCHARIDE COMPONENTS - HYDROLYSIS (TESTED AS A REDUCING SUGAR)

Question 4

WHAT REAGENT IS ADDED TO A SAMPLE TO TEST FOR A NON-REDUCING SUGAR?

Answer 4

BENEDICT’S REAGENT

Question 5

IS HEAT NECESSARY TO THE NON-REDUCING SUGARS TEST?

Answer 5

YES

Question 6

IF THE COLOUR REMAINS BLUE, WHAT DO YOU DO?

Answer 6

AHH HYDROCHLORIC ACID TO A FRESH SAMPLE AND HEAT (BREAK TO GLYCOSIDIC BOND)

Question 7

HOW WOULD YOU THRN NEUTRALISE THE SOLUTION?

Answer 7

ADD SODIUM HYDROXIDE + TEST WITH pH PAPER

Question 8

WHAT IS THE VISIBLE COLOUR CHANGE IF NON-REDUCING SUGARS ARE PRESENT?

Answer 8

BLUE > BRICK RED

Question 9

WHAT IS THE VISIBLE COLOUR CHANGE IF NON-REDUCING SUGARS ARE NOT PRESENT?

Answer 9

REMAINS BLUE