The octane number of gasoline is a measure of octane activity. The octane activity is determined by comparing the engine performance using gasoline and known mixtures of isooctane and n-heptane. a. True
b. False

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.