chapter 4 quiz 2

what is the test for reducing sugar?

• iodine test

• benedict test

• ethanol emulsion test

• biuret test

• DCPIP test

what is the test for fats?

• iodine test

• benedict test

• ethanol emulsion test

• biuret test

• DCPIP test

what is the test for proteins?

• iodine test

• benedict test

• ethanol emulsion test

• biuret test

• DCPIP test

what is the test for starch?

• iodine test

• benedict test

• ethanol emulsion test

• biuret test

• DCPIP test

what is the test for vitamin C?

• iodine test

• benedict test

• ethanol emulsion test

• biuret test

• DCPIP test

what is the result for benedict test when reducing sugar is present?

• turns from blue to purple.

• turns from blue to colourless

• turns from orange-brown to blue-black

• an emulsion is formed

• turns from blue to brick-red

what is the result for iodine solution test when starch is present?

• turns from blue to purple.

• turns from blue to colourless

• turns from orange-brown to blue-black

• an emulsion is formed

• turns from blue to brick-red

what is the result for ethanol emulsion test when fat is present?

• turns from blue to purple.

• turns from blue to colourless

• turns from orange-brown to blue-black

• an emulsion is formed

• turns from blue to brick-red

what is the result for biuret test when protein is present?

• turns from blue to purple.

• turns from blue to colourless

• turns from orange-brown to blue-black

• an emulsion is formed

• turns from blue to brick-red

what is the result for DCPIP test when vitamin C is present?

• turns from blue to purple.

• turns from blue to colourless

• turns from orange-brown to blue-black

• an emulsion is formed

• turns from blue to brick-red