Chemistry Question from JEE Main 2026 · 24 January, Shift 2

Carbon exhibits negative oxidation states along with $+4$ and $+2$.

$\text{CO}_2$ is the most acidic oxide among the dioxides of group $14$ elements.

Among the isotopes of carbon, $^{13}\text{C}$ is a radioactive isotope.

Carbon cannot exceed its covalency more than four.