A-Level Chemistry Question Analysis Topic: Chemistry - Short Questions
Exam Questions:
1) Define order of reaction. How does order of a reaction differ from molecularity for a complex reaction?
2) Why is chloroform kept in dark coloured bottles?
Answer:
For A-Level Chemistry, you should know:
1) The sum of the powers of the molar concentration of the reacting species in the rate equation of the reaction is the definition of the order of a chemical reaction.
While the order of a reaction applies to both simple and complex reactions, molecularity has no significance for a complex reaction.
2) In the presence of light, air slowly oxidizes chloroform to produce the highly toxic gas phosgene. As a result, it is maintained in tightly closed, dark-colored bottles that are completely filled to keep out air.
Work hard for your A-Level Chemistry examination!
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