MHT-CET · Hydrogen and s-Block Elements (Class 11 — ~20% weight) · Quiz
5 real MHT-CET questions on Hydrogen and s-Block Elements (Class 11 — ~20% weight). Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 4
MEDIUMWhen sodium reacts with excess oxygen, it primarily forms sodium peroxide. What is the oxidation state of oxygen in sodium peroxide (Na2O2)?