Lab 2

Question 1

What is the Benedict solution used to test for and what color is it?

What color is a +. -?

Answer 1

Solution is blue
Positive for simple sugar
+orange
- stays blue

Question 2

What is iodine test used for?
What color is it?
What color is a + -?

Answer 2

Used for starch
Brown / Black
+black
- amber orrange

Question 3

What is biuret solution used to test?
What color is it?
What color is + -

Answer 3

Protein
Light blue
+purple
- stays blue

Question 4

What is Sudan IV solution us s for?
What color is it?
What color is +-?

Answer 4

Used for lipids
Pink
+ turns red
- stays pink