answer Whole Q.21.….…?
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a) Mercury / Hg
b) name: cinnabar
formula: HgS (sulphide ore)
c) the metal is extracted by heating the ore in air (roasting)
d) 2HgS + O2 ---> 2HgO + S
HgS + 2HgO ---> 3Hg + SO2
(as the entire ore does not get converted to HgO at once, the remaining HgS part reacts with the newly formed HgS part to form SO2 and Hg metal.)
b) name: cinnabar
formula: HgS (sulphide ore)
c) the metal is extracted by heating the ore in air (roasting)
d) 2HgS + O2 ---> 2HgO + S
HgS + 2HgO ---> 3Hg + SO2
(as the entire ore does not get converted to HgO at once, the remaining HgS part reacts with the newly formed HgS part to form SO2 and Hg metal.)
rohanharolikar:
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