Acids and Bases Concepts Assessment

Why is it helpful to classify and group different substances?

• To make them look more organized.

• To make it easier to sort and understand them.

• To give them unique names.

• To separate them by color.

What taste is typically associated with acids?

• Sweet

• Salty

• Sour

• Bitter

Which of the following is an example of an acidic substance?

• Vinegar

• Toothpaste

• Bleach

• Soap

What can happen to teeth if they are exposed to acidic drinks like soda for a long time?

• They become stronger.

• They get whiter.

• They can be damaged.

• They develop a protective layer.

Which of these household items is an alkali?

• Lemon juice

• Coffee

• Baking soda

• Wine

How do alkalis typically feel when touched?

• Sticky

• Rough

• Slippery

• Gritty

What does it mean if a substance is described as "corrosive"?

• It has a strong smell.

• It can damage materials.

• It changes color when exposed to air.

• It is safe to touch.

Where is hydrochloric acid found in the human body?

• In the blood

• In the stomach

• In the brain

• In the muscles

What type of chemical is found in car batteries that can burn skin if it leaks?

• Ammonia

• Nitric acid

• Sulphuric acid

• Sodium hydroxide

What color would a universal indicator turn if it was placed in a strongly acidic substance?

• Blue or purple

• Green or yellow

• Red or orange

• Black or white