MHT CET20228 Aug 2022Morning ShiftChemistryHydrocarbonsActual
Which of the following alkanes is used for road surfacing?
Options
- AC ₂₀ H ₄₂ to C ₂₄ H ₅₀
- BC ₃₆ H ₇₄ and above
- CC ₁₀ H ₂₂ to C ₁₂ H ₂₆
- DC ₁₅ H ₃₂ to C ₁₉ H ₄₀
Correct answer
B. C ₃₆ H ₇₄ and above
Step-by-step solution
Alkane Properties and Uses by Carbon Chain Length Gaseous alkanes (C1–C4) serve primarily as fuels, including methane in natural gas and propane/butane in liquefied petroleum gas (LPG). Liquid alkanes (C5–C17) are key components of gasoline, kerosene, and diesel fuels. Waxy solid alkanes (C18–C35) appear in paraffin wax, lubricating oils, and greases. Higher molecular weight alkanes (over C35) are viscous liquids or solids used chiefly in bitumen for road surfacing and roofing applications. Thus, alkanes with more