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Give the difference in boiling point and meting point in alkane series in short ? |
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Answer» Solution :(i) In alkane , there is weak van der Waals therefore at normal temperature till `C_(4)` is gas and `C_(5)` to `C_(13)` are LIQUID in state. (ii) As there is increase in MOLECULAR weight in alkane van der Waals force increase. It increases the boiling and melting POINT. (iii) Increase in the number of chains in isomers of alkane, DUE to it they are in shape of sphere and on increasing are van der Waals force are less therefore, boiling point is less. (iv) In isomers of alkane as the chain increases they are in the shape of sphere, due to it there isless internuclear distance and van der Waals force increases, there is increases in melting point. |
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