Question : What is the popular name for mercury(I) chloride used as a laboratory reagent and as a depolarizer in dry batteries?
Option 1: Calomel
Option 2: Phosgene
Option 3: Galena
Option 4: Saltpetre
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Correct Answer: Calomel
Solution : The correct answer is Calomel.
The popular name for mercury(I) chloride is calomel. Calomel is a white or yellowish-white powder that has been used as a laboratory reagent in medicine and as a depolarizer in dry batteries.
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