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Question

Three hydrocarbons A,B and C haev melting points- 183C, -138 C and 95.3 respectively. which one has minimum number of carbon atoms in molecule?

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Solution

Molecular weight increases melting point also increases. The interior concept here is the molecular weight increases the number of protons, electrons and neutrons also increase then require more amount of temperature required for breaking of bonds into its relevant liquid state

So A has a minimum number of carbons.

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