### JEE Mains Previous Years Questions with Solutions

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### AIEEE 2002

At absolute zero, Si acts as
A
non-metal
B
metal
C
insulator
D
none of these

## Explanation

Pure silicon, at absolute zero, will contain all the electrons in bounded state. The conduction band will be empty. So there will be no free electrons (in conduction band) and holes (in valence band) due to thermal agitation. Pure silicon will act as insulator.