Chemical Properties Quiz

Which of the following is a chemical property of food?

• Color

• Texture

• pH

• Size

What term describes the reaction of a substance with oxygen, leading to spoilage in food products?

• Hydration

• Oxidation

• Emulsification

• Gelation

Which of the following measures the acidity or alkalinity of a food substance?

• Viscosity

• pH scale

• Colorimetric test

• Titration

Which substance is commonly used as an emulsifier in food products?

• Water

• Lecithin

• Salt

• Sucrose

What chemical property affects the shelf life of oils in food products?

• Solubility

• Oxidative stability

• pH

• Gelation

How does the pH of a food product influence its preservation?

• Higher pH makes food sweeter

• Lower pH increases food spoilage

• Higher pH extends the shelf life

• Lower pH inhibits microbial growth

Why is solubility an important chemical property in food technology?

• It determines how fast food will cook

• It affects how ingredients mix and dissolve in food formulations

• It controls the texture of food

• It only applies to fats

What is the primary reason for performing qualitative analysis on food products?

• To measure weight

• To identify the physical appearance

• To detect the chemical composition

• To check packaging

Which of the following would you use to measure the acidity level in a fruit juice sample?

• Gel electrophoresis

• pH meter

• Chromatography

• Solubility test

During a lab experiment, you are asked to check for the presence of proteins in milk. Which test would you likely use?

• Titration

• Colorimetric test

• Chromatography

• pH measurement