Complete the chart.
Extraction of Aluminium
Name of two ores with
chemical formulae
Write colour and electronic
configuration of the related
element
Name of two steps
of extraction
Answers
Answer:
Out of 22 non-metals 10 non-metals are solid 8 (e.g. carbon, Sulphur and phosphorous), 11 non-metals are gases (e.g. hydrogen, nitrogen, oxygen and chlorine), whereas only one non-metal (bromine) is a liquid non-metals.
Explanation:
Therefore the two main steps of extraction of metals are,
Convert Ores to form oxides.
Reduction of Metal Oxides.
Answer:
Aluminium ores: Bauxite 【Al(OH)3】
Bohmite 【AlOOH】
The ore is first converted into pure aluminium oxide by the Bayer Process. The aluminium oxide has too high a melting point to electrolyse on its own. The usual aluminium ore is bauxite. Then with the help of a reducing agent such as Carbon is used to extract oxygen from the Aluminium Oxide.
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