MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp-Block (group 13 and 14)Previous Year Questions

Which of the following does not show electrical conduction? (AIPMT 1999)

A.Diamond✓ Correct

B.Graphite

C.Potassium

D.Sodium

Explanation

Except diamond other three conduct electricity. Potassium and sodium are metallic conductors, while graphite is a non-metallic conductor. p-BLOCK (Group 13 - 14) 58

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