The Reaction That Occurs in a Breathalyzer,a Device Used to Determine

Multiple Choice

The reaction that occurs in a Breathalyzer,a device used to determine the alcohol level in a person's bloodstream,is given below.If the rate of appearance of Cr₂(SO₄) ₃ is 1.64 mol min^-1 at a particular moment,what is the rate of disappearance of C₂H₆O at that moment?
2 K₂Cr₂O₇(aq) + 8 H₂SO₄(aq) + 3 C₂H₆O(aq) → 2 Cr₂(SO₄) ₃(aq) + 2 K₂SO₄(aq) + 11 H₂O(l)

A) 0.547 mol min^-1
B) 1.09 mol min^-1
C) 2.46 mol min^-1
D) 4.92 mol min^-1