Question

extraction of less reactive metal with details class 10 cbse.
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Answer 1

Answer:

the oxide of these metals can be reduce to metal by heating alone

Explanation: for example

2HgS + 3 O^2 ----------> 2HgO + 2 SO2

2 HgO -------->2Hg + O2

Answer 2

Answer:

metals which are low in the reactivity these are found only in the form of sulphide ores. the sulphide ores are converted into oxides by the process of roasting. after roasting, oxide of these metals can be reduced by heating alone...

for example- cinnabar is an ore of mercury when it is heated in air it first converted into mercuric oxides . mercuric oxides is reduced by further heating.

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