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B
the reaction of HgCl2 with Hg
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C
the reaction of Hg with limited amount of Cl2
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D
the reaction of Hg with concentrated HCl
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Solution
The correct option is B the reaction of HgCl2 with Hg Anhydrous mercurous chloride can be prepared by the reduction of mercuric chloride with mercury. HgCl2+Hg→Hg2Cl2