IGCSE Topic 3 - Food Tests

Which reagent (chemical) is used to test for starch ?

• Iodine Solution

• Benedict's Solution

• Biuret Solution

• Ethanol

Which reagent (chemical) is used to test for lipids (fats & oils) ?

• Iodine Solution

• Benedict's Solution

• Biuret Solution

• Ethanol

Which reagent (chemical) is used to test for sugar ?

• Iodine Solution

• Benedict's Solution

• Biuret Solution

• Ethanol

Which reagent (chemical) is used to test for protein ?

• Iodine Solution

• Benedict's Solution

• Biuret Solution

• Ethanol

Which food test involves heating the solution in a water bath ?

• Test for starch

• Test for sugar

• Test for protein

• Test for lipids

Which colour indicates a NEGATIVE result for starch ?

• Pale blue

• Brown

• Milky white

• Colourless

Which colour indicates a NEGATIVE result for sugar ?

• Pale blue

• Red

• Lilac

• Milky white

Which colour indicates a NEGATIVE result for protein ?

• Lilac

• Colourless

• Green

• Pale blue

Which colour indicates a NEGATIVE result for lipids (fats & oils) ?

• Yellow

• Blue/black

• Colourless

• Milky white

Which colour indicates a POSITIVE result for starch ?

• Brown

• Blue/black

• Yellow

• Red