7F Acids and Alkalis

Which of the following substances contain an alkali?

• Baking powder

• Coca cola

• Distilled water

• Vinegar

What colour is universal indicator in strong acid?

• Green

• Orange

• Purple

• Red

Which of the following pH numbers indicate a strong alkali?

• 1

• 5

• 9

• 14

What colour is universal indicator in a neutral solution?

• Green

• Orange

• Purple

• Red

What colour is universal indicator in a strong alkali?

• Green

• Orange

• Purple

• Red

Which of the following pH numbers indicates a neutral substance?

• 1

• 5

• 7

• 14

Which of the following substances contain acid?

• An orange

• Bleach

• Distilled water

• Washing powder

Strong acids and strong alkalis are...

• Able to turn blue litmus paper red

• Corrosive

• Sour

• Sweet

Which of the following acids do we have in our stomach?

• Ethanoic acid

• Hydrochloric acid

• Nitric acid

• Sulfuric acid

Which of the following pH numbers indicates a strong acid?

• 1

• 5

• 7

• 14