The fuel which usually burns with a blue flame is:

46 The molecular formulae of some organic compounds are given below. Which of these compounds contains an aldehyde group? 47 The organic compounds which are isomeric with one another are: 49 Which of the following burns by producing a yellow, luminous flame? 50 The molecular formula of an organic compound is C₄₈H_94. This compound belongs to the homologous Series of: