Sodium hydroxide () is a strong base that reacts with several amphoteric metals. Which of the follow — s Block Elements Chemistry Question

💡 Solution & Explanation

$NaOH$ reacts with amphoteric metals to liberate hydrogen gas and form complex soluble salts. Al gives sodium meta-aluminate ($NaAlO_2$), Zn gives sodium zincate ($Na_2ZnO_2$), Be gives sodium beryllate ($Na_2BeO_2$), and Sn gives sodium stannite ($Na_2SnO_2$). All of these reactions evolve $H_2$ gas.