acids and alkalis

acids and alkalis

Multiple Choice

Where does the acid in your mouth come from?

Multiple Choice

Which substance is alkali?

Multiple Choice

Indigestion can be treated by drinking ....

Multiple Choice

Alkalis feel...

• Rough

• soapy

• smooth

Multiple Choice

Acids taste

• Sour

• Bitter

• Salty

Multiple Choice

What can test for acids and alkalis?

Multiple Choice

A wasp sting is alkaline. What would neutralise the sting?

• Vinegar

• Bleach

• Baking soda

• water

Multiple Choice

Rainwater is an acid.

Multiple Choice

You can eat or drink some acids

Multiple Choice

Is this an acid or an alkali?

• Acid

• Alkali

Multiple Choice

Is this an acid or an alkali?

• Acid

• Alkali

Multiple Choice

Is this an acid or an alkali?

• Acid

• Alkali

Multiple Choice

Are these drinks acids or alkalis?

• Acid

• Alkali

Multiple Choice

Is this an acid or an alkali?

• Acid

• Alkali

Multiple Choice

Which of the following substance is an alkali?

Multiple Select

Which two of these is an acid?

Multiple Choice

Acids taste

• fishy

• salty

• sour

• sweet

Multiple Choice

Something that can dissolve in water is said to be...

• insoluble

• soluble

Multiple Choice

What is used to tell if a substance is acid, alkaline or neutral?

Multiple Choice

Seawater is slightly acidic.

• True

• False

Multiple Choice

Some acids and alkalis are safe to use.

• True

• False

Multiple Choice

What does this sign mean?

• A substance is safe

• A substance can be eaten

• A substance is corrosive

• None of them

Multiple Choice

What can corrosive acids and alkalis do?

• burn your skin

• turn blue

• They are diluted.

Multiple Choice

What is the pH of water?

• pH 7

• pH 14

• pH 6

• pH 9

Multiple Choice

Is toothpaste an alkali?

• Yes

• No

Multiple Choice

Bleach is a strong alkali, what is the pH level of bleach?

• 13

• 10.5

• 1

• 2

Multiple Choice

A solution with a pH of 3.6 would be...

• Acid

• Base

• Neutral

Multiple Choice

What is the only substance with a neutral pH of 7?

Multiple Choice

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

Multiple Choice

The pH scale is a range from:

• 1-7
• 0-14
• 1-14
• 1-20

Multiple Choice

What colour is universal indicator in a neutral solution?

Multiple Choice

What colour is universal indicator in a strong alkali?

• Green
• Orange
• Purple
• Red