Classification of Hydrocarbons

How will you distinguish between 1-butene and butane?

Give a chemical test to distinguish between ethane and ethyne.

Show the formation of electrophile in the following reaction,

${\mathrm{H}}_2{\mathrm{SO}}_4$

Show the formation of electrophile in the following reaction,

${\mathrm{Br}}_2+\mathrm{Fe}$

Show the formation of electrophile in the following reaction,

${\mathrm{HNO}}_3+{\mathrm{H}}_2{\mathrm{SO}}_4$

Show the formation of electrophile in the following reaction,

${\mathrm{Cl}}_2+{\mathrm{FeCl}}_3$

Explain the term polymerisation with two examples.

A hydrocarbon 'X' takes up two molecules of hydrogen and is converted into a saturated hydrocarbon. On ozonolysis, X gives a mixture of three carbonyl compounds namely, acetaldehyde, acetone and propan-1,3-dial. Assign structure of compound X.

Which one of the following has the minimum boiling point?