Assertion: reactive metal | /r/HasProperty | obtained by reduction of their oxides
Facets:
value: with more reactive metals
type: OTHER
value: with carbon
type: OTHER
Source sentences:
text: Therefore, most elements can only be obtained by some kind of chemical process to separate or extract an element from a compound e.g. Less reactive metals are obtained by reduction of their oxides with carbon and more reactive metals are extracted by electrolysis of their chlorides or oxides (see GCSE notes on Metal Extraction) Non–metals are obtained by a variety of means e.g. chlorine is obtained by electrolysis of sodium chloride solution (see Group 7