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Alkalis and Alkaline Substances Quiz

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Questions and Answers

What is the pH of a solution of a soluble base?

Equal to 7.0

Greater than 7.0 (correct)

Less than 7.0

Dependent on the concentration of the base

What is the definition of an alkali?

A basic, ionic salt of an alkali metal or an alkaline earth metal (correct)

An acidic, ionic salt of an alkali metal or an alkaline earth metal

A neutral, ionic salt of an alkali metal or an alkaline earth metal

A compound that does not dissolve in water

Why is the term 'alkaline' commonly used as a synonym for basic in English?

Because alkalis were the first bases known to obey the Arrhenius definition of a base (correct)

Because alkalis were the first bases known to be insoluble in water

Because alkalis were the first bases known to be acidic

Because alkalis were the first bases known to obey the Bronsted-Lowry definition of a base

What is the origin of the word 'alkali'?

Arabic al qalīy, meaning the calcined ashes Signup and view all the answers

What is potash composed mostly of?

Potassium carbonate Signup and view all the answers

What is the chemical formula of hydrochloric acid?

HCl(aq) Signup and view all the answers

What is the color of hydrochloric acid?

Colorless Signup and view all the answers

In which systems is hydrochloric acid a component of the digestive process?

Most animal species, including humans Signup and view all the answers

What was hydrochloric acid historically called by European alchemists?

Spirits of salt Signup and view all the answers

Which term has the same origin as 'muriatic acid'?