Acids & Alkalis

Question 1

Alkali on the pH scale

Answer 1

The pH of an alkali is more than 7. The higher the pH, the stronger the alkali. The colour on an alkali on the pH scale is blue/purple

Question 2

Neutral solutions on the pH scale

Answer 2

Some solutions are not acidic or alkakine. They are neutral. Their pH is 7. The colour of a neutral solution is green on the pH scale

Question 3

Universal Indicator

Answer 3

Universal indicator turns solutions different colours. The colour depends on the pH.

Question 4

How do you neutralise an acid?

Answer 4

You add an alkaline

Question 5

How do you neutralise an alkaline?

Answer 5

You add acid

Question 6

Example of an acidic product

Answer 6

Lemon juice, Diet coke, Oil, Ketchup

Question 7

Example of an alkali product

Answer 7

Tooth paste, Indigestion tablets

Question 8

An example of a neutral product

Answer 8

Shampoo, Fairy Washing up Liquid, Soap

Question 9

Bee sting

Answer 9

Bee sting is acidic

Question 10

Wasp sting

Answer 10

Wasp sting is alkaline

Question 11

Acid on the pH scale

Answer 11

The pH of an acid is lower than 7. The lower the pH, the stronger the acid. The colour on an acid on the pH scale is red/orange/yellow