Chemistry in Everyday Life: Online Quizzes and Learning Resources

Question 1

Baking powder contains sodium bicarbonate that reacts with which acid to produce carbon dioxide?

Accepted Answer

Cream of tartar

Answer

Tartaric acid

Answer

Baking soda

Answer

Potassium tartrate

Question 2

The process of converting glucose into ethanol and carbon dioxide by yeast is called:

Accepted Answer

Fermentation

Answer

Respiration

Answer

Glycolysis

Answer

Metabolism

Question 3

Which type of chemical bond forms a rigid, three-dimensional structure in diamond?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 4

The process of extracting metals from their ores is called:

Accepted Answer

Metallurgy

Answer

Electrolysis

Answer

Distillation

Answer

Chromatography

Question 5

Which of the following polymers is used in making plastic bottles?

Accepted Answer

Polyethylene terephthalate (PET)

Answer

Polyvinyl chloride (PVC)

Answer

Polyethylene (PE)

Answer

Polypropylene (PP)

Question 6

The chemical reaction that occurs when iron is exposed to moisture and oxygen is called:

Accepted Answer

Oxidation

Answer

Reduction

Answer

Hydrolysis

Answer

Neutralisation

Question 7

Enzymes in cleaning products primarily serve to:

Accepted Answer

Break down organic contaminants

Answer

Enhance surfactant activity

Answer

Prevent scale formation

Answer

Bleach stains

Question 8

Antioxidants in food preservation primarily function to:

Accepted Answer

Slow down oxidation reactions

Answer

Inhibit microbial growth

Answer

Enhance nutritional value

Answer

Alter taste and texture

Question 9

Emulsifiers in food products are primarily used to:

Accepted Answer

Stabilize mixtures of oil and water

Answer

Enhance flavour and aroma

Answer

Reduce calorie content

Answer

Increase nutritional value

Question 10

Which of the following is a type of surfactant commonly found in cleaning products?

Accepted Answer

Sodium dodecyl sulfate

Answer

Calcium carbonate

Answer

Glucose

Answer

Ethanol

Question 11

Which of the following is NOT an ingredient commonly used in the production of cosmetics?

Accepted Answer

Sucrose

Answer

Lanolin

Answer

Parabens

Answer

Sodium Lauryl Sulfate

Question 12

Which of the following cleaning products is correctly classified as a strong alkali?

Accepted Answer

Ammonia

Answer

Bleach

Answer

Vinegar

Answer

Baking Soda

Question 13

What is the main advantage of using biodegradable cleaning products?

Accepted Answer

They break down naturally in the environment, reducing pollution

Answer

They are more effective at cleaning surfaces

Answer

They are typically less expensive to produce

Answer

They do not contain any harmful chemicals

Question 14

Which of the following resources is renewable and frequently used in the production of everyday products?

Accepted Answer

Wood

Answer

Petroleum

Answer

Coal

Answer

Natural gas

Question 15

The chemical reaction known as saponification involves the combination of:

Accepted Answer

A base and a fat to form soap

Answer

An acid and a base to form a salt

Answer

An alcohol and an acid to form an ester

Answer

An acid and an alcohol to form an ether

Question 16

The active ingredient in toothpaste that helps prevent tooth decay is:

Accepted Answer

Fluoride

Answer

Sodium bicarbonate

Answer

Hydrogen peroxide

Answer

Calcium carbonate

Question 17

What is the chemical formula for aspirin?

Accepted Answer

C6H4(COOH)(COOCH3)

Answer

C6H5OH

Answer

C12H22O11

Answer

CH3COOH

Question 18

Which of the following is a natural food colorant?

Accepted Answer

Riboflavin

Answer

Tartrazine

Answer

Allura red AC

Answer

Sunset yellow FCF

Question 19

Which of the following is a function of parabens in cosmetics?

Accepted Answer

Preserving products by inhibiting microbial growth

Answer

Enhancing skin penetration

Answer

Acting as antioxidants

Answer

Providing a pleasant fragrance

Question 20

What is the primary role of silica in toothpaste?

Accepted Answer

Providing abrasive action for cleaning teeth

Answer

Neutralizing acids produced by bacteria

Answer

Preventing plaque formation

Answer

Whitening teeth

Question 21

What is the primary component of cosmetics that imparts moisturizing properties?

Accepted Answer

Glycerol

Answer

Ethanol

Answer

Sodium dodecyl sulfate

Answer

Triclosan

Question 22

Which of the listed chemicals is commonly found in cleaning products and is considered safe for use?

Accepted Answer

Sodium bicarbonate

Answer

Sodium hypochlorite

Answer

Ammonia

Answer

Phenol

Question 23

Which of the following is a widely used preservative in food products to prevent spoilage?

Accepted Answer

Sodium benzoate

Answer

Sodium hydroxide

Answer

Calcium carbonate

Answer

Potassium iodide

Question 24

In the formulation of cosmetics, which ingredient plays a crucial role as a surfactant?

Accepted Answer

Sodium lauryl sulfate

Answer

Glycerin

Answer

Vitamin E

Answer

Titanium dioxide

Question 25

Identify the substance that effectively reduces the surface tension of water, making it easier for liquids to spread.

Accepted Answer

Dish soap

Answer

Sand

Answer

Sucrose

Answer

Chalk

Question 26

In a chemical reaction, which term describes the process where heat energy is absorbed from the surroundings?

Accepted Answer

Endothermic

Answer

Reversible

Answer

Exothermic

Answer

Irreversible

Question 27

Which of the following materials has the ability to decompose naturally through biological processes?

Accepted Answer

Paper

Answer

Glass

Answer

Metal

Answer

Plastic

Question 28

The process of a liquid changing into a gas is called:

Accepted Answer

Evaporation

Answer

Sublimation

Answer

Deposition

Answer

Condensation

Question 29

Which element, belonging to Group 18 of the periodic table, is characterized by its inertness and lack of reactivity?

Accepted Answer

Helium

Answer

Nitrogen

Answer

Carbon dioxide

Answer

Oxygen

Question 30

On the pH scale, a neutral solution has a pH value of:

Accepted Answer

7

Answer

0

Answer

14

Answer

10

Question 31

Which of these is NOT a chemical commonly used to preserve food?

Accepted Answer

Sodium acetate

Answer

Potassium sorbate

Answer

Calcium propionate

Answer

Sodium benzoate

Question 32

What is the primary function of surfactants in cleaning products?

Accepted Answer

Reduce surface tension, allowing water to penetrate and lift dirt

Answer

Increase viscosity

Answer

Neutralize acids

Question 33

What is the main ingredient in baking soda?

Accepted Answer

Sodium bicarbonate

Answer

Sodium chloride

Answer

Potassium hydrogen carbonate

Question 34

Which of the following is considered a saturated fat?

Accepted Answer

Butter

Answer

Canola oil

Answer

Avocado oil

Answer

Olive oil

Question 35

What is the primary role of emollients in cosmetics?

Accepted Answer

To soften and moisturize the skin

Answer

Protect the skin from UV rays

Answer

Whiten the skin

Answer

Exfoliate the skin

Question 36

Which of the following is an example of a biodegradable cleaning product?

Accepted Answer

Enzymes

Answer

Bleach

Answer

Ammonia

Answer

Hydrochloric acid

Question 37

What type of chemical bond is primarily responsible for holding water molecules together?

Accepted Answer

Hydrogen bond

Answer

Ionic bond

Answer

Metallic bond

Answer

Covalent bond

Question 38

Which of these is NOT a typical function of food additives?

Accepted Answer

To add nutritional value

Answer

To enhance flavor

Answer

To improve appearance

Answer

To preserve food

Question 39

What is the active ingredient in toothpaste that fights tooth decay?

Accepted Answer

Fluoride

Answer

Triclosan

Answer

Sodium lauryl sulfate

Answer

Calcium