I/GCSE Chemistry Question Analysis Topic: Chemistry - Short Questions
Exam Questions:
1) Which of the following isomers is more volatile: o-nitrophenol or p-nitrophenol?
2) (i) Write the type of magnetism observed when the magnetic moment are oppositely aligned and cancel out each other?
(ii) Which stoichiometric defect does not change the density of the crystal?
Answers:
For I/GCSE Chemistry, you should know:
1) o-nitrophenol is more volatile than p-nitrophenol.
Intramolecular hydrogen bonding involves o-nitrophenol while intermolecular hydrogen bonding involves p-nitrophenol.
Intermolecular hydrogen bonds cause the molecules of p-nitrophenol to associate i.e., bond together, giving it a high boiling point and a less volatile nature.
2) (i) Anti-ferromagnetism can be observed when magnetic moments are oppositely aligned to one another and cancel each other out.
(ii) The crystal's density remains unaffected by the Frenkel defect.
Work hard for your I/GCSE Chemistry examination!
End of analysis. Great!
