Q. The oxidation state shown by silicon when it combines with strongly electropositive metals is
A) $- 2$
B) $- 4$
C) +4
D) +2
Explanation
(b)
Si has 4 electrons in its valence shell. When it reacts with strongly electropositive metal like Na, Mg, K etc., it gives 4 electrons and its oxidation state in this case is $- 4.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.