'Consider the three isomeric alkanes n- hexane,2,3-dimethylbutane; and 2- methylpentane Which of the following correctly lists these compounds in order ?of decreasing boiling point
methylpentane <n-hexane 2,3-2 dimethylbutane
methylpentane <2,3-dimethylbutane-2 n-hexane
n-hexane <2-methylpentane 2,3- dimethylbutane
n-hexane <2,3-dimethylbutane < 2- methylpentane
None of the above'