Chemical Reactions Quiz

Which type of reaction involves two or more substances combining to form one product?

• Decomposition

• Combustion

• Synthesis

• SingleReplacement

What is the main by product of a neutralization reaction?

• Oxygen gas

• Water

• Hydrogen gas

• Carbon dioxide

In a redox reaction, the substance that gains electrons is said to be:

• Oxidized

• Reduced

• Neutralized

• Precipitated

Which reaction type is used to detect chloride ions in food samples?

• Combustion

• Double Replacement

• Hydrolysis

• Synthesis

What is the general form of a decomposition reaction?

• AB→A+B

• A+B→AB

• AB+CD→AD+BC

• CxHy+O2→CO2+H2O

Which of the following is commonly used to test for the presence of vitamin C in food?

• Potassium dichromate

• Sodium hydroxide

• Iodine

• Barium chloride

Why are redox reactions important in food technology?

• They test the flavor of food.

• They detect the presence of antioxidants and oxidation.

• They measure the acidity of food.

• They break down carbohydrates into glucose.

Which of the following best describes a single replacement reaction in food chemistry?

• A metal in food displaces another metal in a compound.

• An acid reacts with a base to form a salt and water.

• Two compounds exchange ions to form two new compounds.

• A food additive decomposes into simpler substances.

What role do acid-base reactions play in food technology?

• They are used to measure the energy content of food.

• They determine the pH and monitor food spoilage.

• They help detect contaminants like heavy metals.

• They are used to detect vitamins and minerals.

In qualitative chemistry, why is hydrolysis important for analyzing food?

• It helps measure the caloric content of fats.

• It breaks down complex molecules for simpler analysis.

• It detects the presence of metal ions.

• It helps in preserving food.