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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
- Tert-butyl bromide on treatment with sodium methoxide yields
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
- The electron configuration of an element is 1s²,2s²,2p⁶,3s²,3p⁶,3d⁵,4s¹
- Atoms in a P₄ molecule of white phosphorus are arranged regularly in the follow
- In an alkaline medium, glycine predominantly exists in a
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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