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Benzene's delocalised π electrons means that it is not very nucleophilic and so cannot polarise a neutral molecule and produce the required electrophile. As a result it require a catalyst to form the elec...

The electrostatic forces of attraction between the shared pair of bonded electrons and the positively charged nuclei hold the atoms together.

Ca(s)+ 2H2O(l) ---> Ca2+(aq) + 2OH– (aq) + H2(g) 

Hexane would have the higher boiling point, due to the fact it's unbranched unlike 1,3-dimethlybutane, hexane would have more surface contact and hence more London forces acting upon it. As a result it wo...

Heat the oil up until it is a vapour Pass into fractionating column Negative temperature gradientHydrocarbons of different lengths have different boiling points They condense at different heights and are ...