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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.
Related Questions: - The correct order of decreasing acidic nature of H₂O,ROH,CH≡CH and NH₃ is
- In a period, the elements are arranged in strict sequence of
- Acetone reacts with Grignard reagent to form
- The inert form of carbon is
- Chemical A is used for water softening to remove temporary hardness.
Topics: States of Matter Gases and Liquids
(80)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The correct order of decreasing acidic nature of H₂O,ROH,CH≡CH and NH₃ is
- In a period, the elements are arranged in strict sequence of
- Acetone reacts with Grignard reagent to form
- The inert form of carbon is
- Chemical A is used for water softening to remove temporary hardness.
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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