How to solve this MC question? (1 Viewer)

[sy37]

What is the standard cell potential for the reaction of 1.0 mol L−1 acidified potassium
dichromate (K2Cr2O (aq)) with aqueous sulfur dioxide (SO aq 7 2( )) under standard
conditions?
(A) 1.20 V
(B) 1.52 V
(C) 2.24 V
(D) 3.20 V

Only one i don't understand...

2014 paper btw

On another note, does anyone find the 2013 paper relatively harder ?

 

[Streetcarcity]

Use the standard potentials table for (1/2Cr2O7)2- ands (SO4)2- should be A