Consider the following statements:
(1) Graphite is the only non-metal that is a good conductor of electricity.
(2) Gauge refers to the impurities, which are present in the ores of metal.
Which of the given statements is/are correct?
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Only (1)
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Only (2)
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Both (1) and (2)
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Neither (1) nor (2)
C
Correct answer
Explanation
Statement (1) is correct. Non-metals are bad conductors of electricity, but the only exception is graphite, which is a good conductor of electricity.
Statement (2) is correct. Gauge is the impurities, which are present in the ores of metal. The various extraction methods are used for the removal of gauge to get the pure metals.