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A-Level Chemistry Question Analysis - Chemistry - Short Questions

A-Level Chemistry Question Analysis

· A-level Chemistry,chemistry

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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