Question

When NaoH+Zn react Sodiumzencate is formed . How less reactive metal can react with more reactive metal compound????

Answer 1

Answer:

Zn+2NaOH→Na 2 ZnO 2 +H 2 Zinc react with excess sodium hydroxide to form sodium zincate(Na 2 ZnO 2 ) along with hydrogen gas. Zinc is a transition metal which shows moderate reactivity.Zinc reacts with NaOH to form sodium zincate with the evolution of hydrogen gas

Answer 2

Answer:

Sodium Zincate is only formed on excess of NaOH. We heat the reaction to catalyse it.

Something like this:

Zn + 2 NaOH > Zn(OH)2 + 2Na

2 Zn(OH)2 + 2 NaOH > Na2ZnO2 + 3H2O

And it certainly is an endothermic reaction.

Explanation: