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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)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The best coagulant for the precipitation of Fe(OH)₃ is
- The number of structural isomers in hexane is
- For a reaction, 2NOCl(g) + Cl₂(g) , Kc at 427⁰C is 3 ˣ 10⁻⁶ L.mol⁻¹.
- When 1 mol of gas is heated at constant volume,temperature is raised
- The number of atoms in 0.004g of magnesium will be
Topics: States of Matter Gases and Liquids (80)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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