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Carbon,silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate?
Options
(a) The number of free electrons for conduction is significant only in Si and Ge but small in C
(b) The number of free conduction electrons is significant in C but small in Si and Ge
(c) The number of free conduction electrons is negligibly small in all the three
(d) The number of free electrons for conduction is significant in all the three.
Correct Answer:
The number of free electrons for conduction is significant only in Si and Ge but small in C
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- A force of 10 newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum
- α-particles, deuterons and protons of same energy are moving in a perpendicular
- The magnetic susceptibility of a material of a rod is 449. Permeability of vaccum
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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