Carbon,silicon and germanium have four valence electrons each. At room temperature

⇦

⇨

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.

Related Questions:

1. If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
2. When a wire of uniform cross-section a, length l and resistance R
3. A car accelerates from rest at constant rate for first 10s and covers a distance x.
4. Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
5. In the reaction ₁²H+₁³H+₂⁴He+₀¹n, if the binding energies of ₁²H,₁³H and ₂⁴He

Topics: Electronic Devices (124)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends