Acids and Alkalis

Acids taste _________________.

• Sour

• Spicy

• Bitter

• Sweet

Which substance is alkali?

• Toothpaste

• Lemon juice

• Vinegar

• Soft drink

Which substance is acid?

• Ammonia

• Toothpaste

• Vinegar

• Soap

Alkalis feel...

• Rough

• Soapy

• Granulated

• Smooth

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

• Ethanoic acid

• Hydrochloric acid

• Nitric acid

• Sulphuric acid

-------------------------------- is the week solution of calcium hydroxide

------------------- is used to test for carbondi oxide gas.

• Lime water

• Sodium hydroxide

• Ammonium hydroxide

• potassium hydroxide

What does this warning symbol mean?

• Toxic

• Corrosive

• Flammable

• Irritant

Answer explanation

What does this warning symbol mean?

• Toxic

• Corrosive

• Flammable

• Irritant

Another way to call hydroxides is:

• Hydroxyl ions

• Bases