Practice question
Question
Which compound contains an element with an oxidation number lower than in CO₂?
Explanation
C in CO₂: +4. In CH₂O: x + 2(+1) + (-2) = 0, x = 0, which is lower.
We use cookies to improve your experience and understand how Examtube is used. You can accept analytics cookies or continue with essential cookies only.
Privacy policyMCQ
Question
Guides and insights connected to this topic
Details physical, chemical and biological mutagens, their impacts on DNA, and substances that counteract mutations.
Explore the key physical and chemical traits of metals and non‑metals, including lustre, hardness, malleability, ductility, conductivity and corrosion.
Explore carbon’s covalent bonding, allotropes, functional groups, and examples like ethanol, ethanoic acid, and soaps. Includes basic properties and reactions.
This page is supported by advertisements. An ad blocker is stopping those ads from loading, so we cannot show the rest of the page yet. Pause the blocker for this site, then continue. We will check again automatically.
You can keep using this site after advertisements are allowed to load.
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.