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Most Important Selected Qs for JEE AdvancedChemistryStates of Matter

A certain saturated hydrocarbon effuses about half as fast as H ₂ O vapour. Number of carbons in the formula of this hydrocarbon are?

Correct answer

5

Step-by-step solution

aligned & r _ C _ H _ 2 n+2 r _ H ₂ O = 1 2 = M _ H ₂ O M _ C _n H _ 2 n+2 & M _ C _n H _ 2 n+2 =4 18=72 & 12 n +1 (2 n +2)=72 & 14 n +2=72 & n =5 aligned

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