Dichromate ion in acidic medium oxidises stannous ion as : xSn2++yCr2O2−7+zH+→aSn4++bCr3++cH2O
A
The value of x:y is 1:3
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B
The value of x+y+z is 18
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C
a:b is 3:2
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D
The value of z−c is 7
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Solution
The correct options are B The value of x+y+z is 18 Ca:b is 3:2 D The value of z−c is 7 The balanced chemical reaction is : 3Sn2++yCr2O2−7+14H+→3Sn4++2Cr3++7H2O (A) x:y=31=3:1 (B) x+y+z=3+1+14=18 (C) ab=32=3:2 (D) z−c=14−7=7