IBDP Chemistry Question Analysis Topic: Chemistry - Short Questions
Exam Questions:
1) (i) Indicate the principle behind the method used for the refining of zinc.
(ii) What is the role of silica in the extraction of copper?
(iii) Which from of the iron is the purest form of commercial iron?
2) What are the transition elements ? Write two characteristics of the transition elements.
Answers:
For IBDP Chemistry, you should know:
1) (i) The distillation method, which is used for metals with low boiling points, is used to refine zinc - a metal with a low boiling point.
(ii) Since FeS or FeO are present as impurities during the extraction of copper, SiO2 to create silicate (slag), is added as a flux which can be easily removed as it floats over molten copper (Cu).
(iii) The purest type of commercial iron is wrought iron.
2) Transition elements are elements that have a partially filled d-orbital in either their ground state or any of their oxidation states. The d-block elements' position between the s-block and p-block elements is the reason they are called "transition" elements.
Work hard for your IBDP Chemistry examination!
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