In a chemical reaction, `K_(2)Cr_(2)O_(7)+xH_(2)SO_(4)+ySO_(2) to K_(2)SO_(4)+ Cr(SO_(4))_(3) +zH_(2)O, ` , the value x, y and z respectively are:

Options

A. `1,3,1`
B. `4,1,4`
C. `3,2,3`
D. `2,1,2`

Answer

A

Explanation

The balanced equation is `{:(14H^(o+)+6e^(-)+Cr_(2)O_(7)^(2)rarr2Cr^(3)+7H_(2)O),(6H_(2)O+3SO_(2)rarr3SO_(4)^(2-)+6e^(-)+12H^(o+)),(ulbar(Cr_(2)O_(7)(2-)+2H^(o+)+3SO_(2)rarr2Cr^(3+)+3SO_(4)^(2-)+H_(2)O)):}`
or lt brgt `K_(2)Cr_(2)O_(7)+H_(2)SO_(4)+3SO_(2)rarrCr_(2)(SO_(4))_(3)+K_(2)SO_(4)+H_(2)O`
`:. x=1, y=3, z=1`