Which of the following solids has the highest electrical conductivity?A.CopperB.Sodium chlorideC.QuartzD.SugarSUBMITarrow_backPREVIOUS
Question
Which of the following solids has the highest electrical conductivity?
- A. Copper
- B. Sodium chloride
- C. Quartz
- D. Sugar
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Solution
The solid with the highest electrical conductivity among the given options is A. Copper.
Explanation:
- Copper is a metal and has high electrical conductivity due to the presence of free-moving electrons.
- Sodium chloride (table salt) is an ionic compound and conducts electricity when dissolved in water or molten but not in solid form.
- Quartz (silicon dioxide) is a covalent compound and generally acts as an insulator.
- Sugar is an organic compound and does not conduct electricity in its solid form.
Thus, copper is the best conductor of electricity among the options.
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