Question

Label the diagram correctly.

(a) 1-Non metal, 2-Semiconductor, 3-Metal

(b) 1-Semiconductor, 2-Non metal, 3-Metal

(c) 1-Metal, 2-Semiconductor, 3-Non metal

(d) 1-Metal, 2-Non metal, 3-Semiconductor

This question was addressed to me in exam.

My query is from Solid State Electrical Properties topic in division Solid State of Chemistry – Class 12

Answer 1

Correct option is (c) 1-Metal, 2-Semiconductor, 3-Non metal

For explanation I would say: Energy gap is very less (may even be absent) for metals, very huge for non metals and intermediate (small) for semiconductors.