Which of the following dissolves in hot conc. | vedclass

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(B) Both $Zn$ and $Sn$ are amphoteric and dissolve in hot concentrated $NaOH$ solution to form their respective soluble complexes.For $Zn$: $Zn + 2NaO

Vedclass · Accepted Answer

$Zn$

Vedclass · Answer

(B) Both $Zn$ and $Sn$ are amphoteric and dissolve in hot concentrated $NaOH$ solution to form their respective soluble complexes.For $Zn$: $Zn + 2NaOH 	o Na_2ZnO_2 + H_2$ (Sodium zincate)For $Sn$: $Sn + 2NaOH + H_2O 	o Na_2SnO_3 + 2H_2$ (Sodium stannate)Since both $Zn$ and $Sn$ are valid,the question typically expects $Zn$ as the most common example in textbooks.

Which of the following dissolves in hot conc. $NaOH$ solution?

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