Which of the following products is formed on boiling tin with an alkali solution

Options

A. `Sn(OH)_2`
B. `Sn(OH)_4`
C. `SnO_3^(2-)`
D. `SnO_2`

Answer

C

Explanation

`Sn + 2NaOH + 4H_2 O to Na_2 [Sn(OH)_6] + 2H_2 ` or `Sn + 2NaOH + H_2 O to underset("stannate")underset("Sodium")(Na_2 SnO_3) + 2H_2 `