What is the molecular formula for the compound: Mercury (II) chloride?

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None of the above

answer is B.

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Detailed Solution

Concept- when naming the compound, the cation is first named then anion. In Mercury (II) chloride (mercuric chloride), mercury in a +2 oxidation state is present as a cation. And chlorine in the -2 oxidation state is present as an anion.
To neutralize the charge, two chloride ions must be present in one molecule. Therefore, the molecular formula of Mercury (II) chloride is

. Historically known as sulema or corrosive sublimate, mercury(II) chloride (mercuric chloride) is an inorganic chemical compound having the formula

. It is a chemical molecule that is extremely hazardous to humans and is a white crystalline solid used as a scientific reagent.
Hence, the correct answer is option 2.

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