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At absolute zero, Si acts as which of the following?

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in Physics – Class 12 by (135k points)
At absolute zero, Si acts as which of the following?

(a) Non-metal

(b) Metal

(c) Insulator

(d) Superconductor

This question was addressed to me in examination.

My question is from Classification of Metals, Conductors and Semiconductors topic in portion Semiconductor Electronics : Materials, Devices and Simple Circuits of Physics – Class 12

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Correct choice is (c) Insulator

The explanation: At absolute zero, the element, silicon (Si) acts as an insulator due to the absence of free electrons in the conduction band. The other options are not valid.

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