Which of the following has the maximum boilin | vedclass

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Question

(B) The correct answer is $(B)$ $n-$octane.$1.$ Boiling point depends on molecular mass. $A$ higher molecular mass leads to a higher boiling point.$2.

Vedclass · Accepted Answer

$n-$octane

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(B) The correct answer is $(B)$ $n-$octane.$1.$ Boiling point depends on molecular mass. $A$ higher molecular mass leads to a higher boiling point.$2.$ For isomers with the same molecular mass,the boiling point depends on the surface area. Straight-chain (linear) alkanes have a larger surface area compared to branched alkanes,leading to stronger van der Waals forces and thus a higher boiling point.$3.$ Among the given options,$n-$octane $(C_8H_{18})$ has the highest molecular mass compared to $n-$butane $(C_4H_{10})$ and is a straight-chain isomer compared to iso-octane and $2, 2, 3, 3-$tetramethylbutane,which are branched.

Which of the following has the maximum boiling point?

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