Question

The catalyst used in the manufacture of polythene by Ziegler method is ______.

Options

• titanium tetrachloride and triphenyl aluminium.

• titanium tetrachloride and triethyl aluminium.

• titanium dioxide.

• titanium isoperoxide.

Answer 1

The catalyst used in the manufacture of polythene by Ziegler method is titanium tetrachloride and triethyl aluminium.

Explanation:

In the Ziegler method of manufacturing polythene, a Ziegler-Natta catalyst is used. This catalyst is a mixture of titanium tetrachloride (TiCl₄) and triethyl aluminium (Al(C₂H₅)₃). It helps in the polymerisation of ethene at low pressure and temperature to produce polythene efficiently.