Class 10 Science Chemistry Metals and Non metals
501
150 The metals at the top of the reactivity series can be obtained by:
(a)
reduction of their oxides
(b)
oxidation
(c)
electrolysis of their molten chlorides
(d)
heating
Correct answer: (c)
Solution: The metals high up in the activity series are very reactive. They cannot obtain by reduction of their oxides by carbon. These metals are obtained by the electrolysis of their molten chlorides, e.g., extraction of from .
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