Thursday, November 5, 2009

Chemistry: Multiple Choice Problem Solving Question 2

Which of the following methods is suitable for preparing lead(II) bromide?

A. Heat lead(II) sulphate and potassium bromide
B. Heat lead(II) oxide and bromine.
C.Add lead powder to aqueous sodium bromide.
D.Mix Lead(II) nitrate solution with sodium bromide solution.


Lead(II) bromide is the stable salt of lead and hydrobromic acid. It is typically formed by precipitation from lead(II) nitrate by the addition of a water-soluble bromide, for example sodium bromide solution. This method is called Double Decomposition Reaction.
Therefore, the answer is D.

Anyway, Lead(II) bromide is not in the SPM syllabus.

Question asked by Ryane.


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