When acidified `K_(2)Cr_(2)O_(7)` solution is added to `Sn^(2+)` salts then `Sn^(2+)` changes to

Options

A. `Sn`
B. `Sn^(3+)`
C. `Sn^(4+)`
D. `Sn^(+)`

Answer

C

Explanation

When acidified `K_2Cr_2O_7` solution is added to `Sn^(2+)` salts then `Sn^(2+)` changes to `Sn^(4+)`. The reaction is given below