Acids, Bases, and Salts

Which of the following is not a base ?

• Washing soda

• Caustic soda

• Caustic potash

• Lemon juice

Which of the following is formed as a result of neutralisation reaction?

• Acid

• Base

• Salt

• Metals

When the pH scale goes lower than 7, it means that the substance is ______.

• neutral

• acidic

• basic

• salt

A pH scale of 0 _____ to people when exposed without protection

• is beneficial

• is dangerous

• has no effect

• medicinal value

This citrus fruit commonly consumed at home has a ph level of _____.

• below 7

• 7

• above 7

• 0

The type of acid in these products is _____

• sulfuric acid

• lactic acid

• sulfuric acid

• acetic acid

Acid rain is a phenomenon and it is caused by ____.

• the air in the atmosphere

• pollutants that reacts with the air

• meteorites falling on Earth

• weather conditions

Which statement is incorrect with water?

• It is composed of hydrogen and oxygen molecules.

• it has a neutral ph of 7.

• It reacts with base to form salt

• Water with minerals is a solution.

Products of a neutralization reaction are always:

• an acid and a base

• an acid and a salt

• a salt and water

• a salt and a base

Name the acid present in our stomach.

• Sulphuric acid

• Hydrochloric acid

• Nitric acid

• Carbonic acid