Which of the following pairs of chemical species are completely isostructural (have identical molecu — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Both the Nitrate ion ($NO_3^-$) and the Carbonate ion ($CO_3^{2-}$) have a central atom with a steric number of 3 (3 bond pairs, 0 lone pairs), making them both $sp^2$ hybridized and perfectly trigonal planar.