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UV light makes mercury(I) chloride disproportionate into HgCl2 and what else?
AMercury oxide
BChlorine gas
CMercury metal
DHydrogen chloride
Answer & Solution
Correct answer: C. Mercury metal
Hg in the +1 state splits into Hg in +2 (HgCl2) and Hg in 0 (the metal).
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