Food Tests Required Practical

Question 1

What does the Benedict’s test for?

Answer 1

Benedict’s test for sugars

Question 2

What colour is benedict’s?

Answer 2

Blue

Question 3

What colour does benedict’s turn if sugar is present?

Answer 3

Red

Question 4

How would you carry out Benedict’s solution?

Answer 4

You would carry it out by mixing a part of food within distilled water to create a test solution, then add benedict’s and leave the boiling tube in water bath for 10 minutes and check for colour change.

Question 5

What does the Iodine test for?

Answer 5

Starch

Question 6

What colour is Iodine solution?

Answer 6

Brown

Question 7

What colour will Iodine turn if starch is present?

Answer 7

Blue-black

Question 8

How would you do the Iodine test?

Answer 8

Make a test liquid of the food sample. Add 1 drop of iodine to the test liquid and check for colour change.

Question 9

What does the Biuret test for?

Answer 9

Protein

Question 10

What colour is Biuret solution?

Answer 10

Blue

Question 11

What colour will Biuret solution turn if Protein is present?

Answer 11

Pink / purple

Question 12

How would you do Biuret’s test?

Answer 12

Make a test liquid of the food sample. Add 1 drop of Biuret solution to the test liquid. Check for colour change.