Ethene reacts with steam at .......... °C and 60 atm in the presence of a .......... acid catalyst to form ethanol.

State the conditions for the hydrogenation of an alkene.

The industrial production of ethanol by hydration uses .......... as the starting material and .......... as the other reactant.

True or False? Hydrogenation of vegetable oils is used in the manufacture of margarine.

In addition reactions, alkenes react with halogens, hydrogen and steam because the C=C double bond can ______ to form a single bond.

Why do alkenes undergo addition reactions but alkanes do not?

What is cracking in the context of crude oil?

Catalytic cracking requires a high .......... and an alumina or silica ...........

What result in the bromine water test confirms that a hydrocarbon is unsaturated?

Cracking breaks large alkane molecules into a mixture of smaller .......... and .......... molecules, as well as hydrogen.

True or False? Adding bromine water to an alkane causes the orange colour to disappear.

A saturated hydrocarbon added to bromine water gives an ______ colour that does not change, showing no reaction has occurred.

Why is cracking economically important?

The hydrogen produced by cracking is used in the ______ Process to manufacture ______ from nitrogen and hydrogen.