1) Both lithium and magnesium display several similar properties due to the diagonal relationship:however the one which is incorrect is A) Both form basic carbonates. B) Both form soluble bicarbonates C) Both form nitrides D) nitrates of both Li and Mg yield $NO_{2}$ and $O_{2}$ on heating Answer: Option AExplanation:Mg can form basic carbonate while Li cannot $5 Mg^{2+}+6CO^{2-}_{3}+7 H_{2}O\rightarrow 4MgCO_{3}+Mg(OH)_{2}.5H_{2}O +2HCO_{3}^{-}$
