5 Questions
Hydrogen can be collected by downward displacement of air.
False
Hydrogen is used as a fuel due to its low heat of combustion.
False
A mixture of hydrogen and air can lead to an explosion.
True
When hydrogen burns, it produces a pop sound.
True
Hydrogen reacts with water to form Fe3O4 and H2.
False
Study Notes
Hydrogen Properties
- Hydrogen is lighter than air.
- Hydrogen is sparingly soluble in water.
- Hydrogen burns with a pale blue flame and produces a pop sound.
Reactivity of Hydrogen
- Hydrogen is produced when a metal from the reactivity series, such as sodium, reacts with water.
- Hydrogen reacts with metal oxides to form metal and water.
Redox Reactions
- Oxidation is the removal of hydrogen and the addition of oxygen.
- In redox reactions, oxidation and reduction occur simultaneously.
- Reduction is the removal of oxygen or the addition of hydrogen.
Additional Facts
- Hydrogen molecule is not monovalent.
- Nitric acid can be used to prepare hydrogen by its action on active metals.
- The reaction between hydrogen and nitrogen to form ammonia is reversible.
- Zinc can liberate hydrogen from water, acid, and alkali solutions.
- Hydrogen is not a supporter of combustion, but it is combustible.
- Hydrogen gas is not easily liquefiable.
Test your knowledge of hydrogen properties and reactions with this quiz. Fill in the blanks and indicate the correct statements about hydrogen in redox reactions.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
