OPSC OAS 2023 PrelimsScience & TechnologyQuestion 3
Solved previous year question from the OPSC OAS/OCS 2023 Preliminary Examination (General Studies), with the official answer key and a detailed explanation.
Question
Symbol of material used in conventional glass thermometers is
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Answer & Explanation
Correct answer: (B) Hg
Hg is the chemical symbol for Mercury (Hydrargyrum), which is the material traditionally used in conventional glass thermometers.
| Symbol | Element |
|---|---|
| Mg | Magnesium — a lightweight metal, not used in thermometers |
| Me | Not a valid chemical symbol for any element |
| Mn | Manganese — a transition metal used in steel making, not thermometers |
