Which of the following does not show electrical conduction

Which Of The Following Does Not Show Electrical Conduction Chemistry Question

Which of the following does not show electrical conduction

Options

(a) Diamond
(b) Graphite
(c) Potassium
(d) Sodium

Correct Answer:

Diamond

Explanation:

Potassium and sodium are metals so have mobile electrons. In graphite, each of the C-atom is covalently bonded to three other C-atoms so one valence electron is available for electrical and thermal conduction there is no mobile electron present in diamond as each C-atom is bonded to four other C-atoms by covalent bond.

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Topics: States of Matter Gases and Liquids (80)
Subject: Chemistry (2512)

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