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Question
One of the following substances is neither a good conductor of electricity nor an insulator. This substance is :
(a) chromium
(b) germanium
(c) gallium
(d) potassium
(a) chromium
(b) germanium
(c) gallium
(d) potassium
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Solution
(b) germanium
Germanium is metalloid. It is neither a good conductor of electricity nor an insulator. It is a semiconductor.
Germanium is metalloid. It is neither a good conductor of electricity nor an insulator. It is a semiconductor.
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