One Type of Alcohol Breathalyzers Used by Law Enforcement Involves

Multiple Choice

One type of alcohol breathalyzers used by law enforcement involves the following reaction. The amount of ethanol present is determined by a change in color of the solution. What type of reaction is this? 3CH₃CH₂OH(g) + 2K₂Cr₂O₇(aq) + 8H₂SO₄(aq) 
3CH₃COOH(aq) + 2Cr₂(SO₄) ₃(aq) + 2K₂SO₄(aq) + 11H₂O

A) base ionization
B) acid ionization
C) acid-base neutralization
D) oxidation-reduction
E) dissociation