EXERCISE: ACID & BASES

Which of the following substances contain an alkali?

• Baking powder

• Coca cola

• Vinegar

• Toothpaste

Which of the following pH numbers indicates a neutral substance?

• a

• 2

• 7

• 14

Which of the following pH numbers indicates a strong acid?

• 2

• 7

• 8

• 14

Which of the following pH numbers indicate a strong alkali?

• 4

• 7

• 14

• 8

What two substance are formed when an acid and alkali react together in equal amounts?

• Acid and water

• Salt and water

• Alkali and water

• Acid and alkali

What substance could you use to test if a substance is an acid or alkali?

• Wooden Lighted splint

• Universal Indicator

• Limewater

• Catalyst

A common alkali used in the lab is

• hydrogen sulphate

• hydrochloric acid

• sodium chloride

• sodium hydroxide

 The pH scale is a range from:

• 1-7

• 1-14

• 0-14

• 1-20

Which of the following is not the properties of alkalis?

• Taste bitter

• The pH scale of alkalis from 8 - 14

• Have a pH less than 7

• Corrosive

Which of the following substances contain acid?

• An orange

• Distilled water

• Bleach

• Washing powder