Home › Maharashtra SSC (Class 10) › Chemistry › Metallurgy › Which allotrope of carbon is a good conductor of…
Which allotrope of carbon is a good conductor of electricity, unlike other nonmetals?
AGraphite
BDiamond
CSulphur
DIodine
Answer & Solution
Correct answer: A. Graphite
1. Nonmetals are generally bad conductors of electricity.
2. Graphite, an allotrope of carbon, is the exception and conducts electricity.
3. Diamond, also an allotrope of carbon, does not conduct electricity, so graphite is correct.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.102_
Related questions
Germanium and silicon used as semiconductors are purified by zone refining becauseNickel is refined by heating the impure metal in a stream of CO to form a volatile carbonyFrom an Ellingham diagram at 1500 K, $\Delta G^\circ$ for $2Fe+O_2\rightarrow 2FeO$ is $-3From an Ellingham diagram, aluminium can reduce which of the following oxides?In an Ellingham diagram the line for the formation of carbon monoxide ($2C + O_2
ightarroAn Ellingham diagram is a plot ofIn the cyanide process, gold is recovered from the leached solution $[Au(CN)_2]^-$ by addiIn the electrolytic refining of copper, the anode and cathode are respectively