Question

Compound X is a six carbon compound. When it is burnt, light is generated. Here, the colour of the flame is yellow because of the presence of carbon particles. Compound X cannot be 

A. C₆H₁₂ B. C₆H₁₄ C. C₆H₆ D. C₆H₁₀

Answer 1

Only unsaturated carbon compounds produce yellow (and sooty) flame. C₆H₁₄ is a saturated compound (hexane) and it will always produce clean blue flame (not yellow) when burnt in sufficient amount of oxygen.