Chemical Tests

What is the purpose of Benedict's test?

• To detect proteins

• To detect lipids

• To detect starch

• To detect reducing sugars

What does the Emulsion test detect?

• proteins

• nucleic acids

• lipids or fats

• carbohydrates

What color change indicates a positive result in the Iodine test?

• red

• blue-black

• yellow

• green

What does Benedict's test detect?

• Lipids

• Reducing sugars

• Proteins

• Starch

What is the purpose of the Emulsion test?

• To measure the pH level of a substance.

• To determine the presence of proteins.

• To identify the presence of carbohydrates.

• To determine the presence of lipids or fats

What is the function of DCPIP in the DCPIP test?

• DCPIP is used to measure the temperature in the DCPIP test.

• DCPIP is used to neutralize the pH in the DCPIP test.

• DCPIP is used as an indicator to detect the presence of vitamin C in the DCPIP test.

• DCPIP is used as a catalyst in the DCPIP test.

What is the purpose of the Iodine test?

• To detect the presence of sugar.

• To determine the pH level of a substance.

• To identify the presence of protein.

• To detect the presence of starch.

What color change indicates a negative result in Benedict's test?

• Yellow color change

• Dark blue color change

• Bright green color change

• No color change or a very faint color change

What is the color change observed in a positive Biuret test?

• blue

• violet or pink

• green

• yellow

What is the color change observed in a positive Emulsion test?

• Clear appearance

• Yellow color

• Milky white or cloudy appearance

• Pink color