Q6 of 53 Page 1

Write the structure of 4-chloropentan-2-one.

First draw the main chain of 5 carbon atoms, since there is ‘pent’.

Next we put the ketone group on the 2^nd carbon and the –Cl group on 4^th carbon if we start numbering from left.

The final step is to fill the carbon atoms with required H atoms.

Based on molecular forces what type of polymer is neoprene ?

What are the products of hydrolysis of maltose ?

Write the name of monomers used for getting the following polymers :

(i) Terylene

(ii) Nylon-6, 6

Describe the role of the following :

(i) SiO₂ in the extraction of copper from copper matte

(ii) NaCN in froth floatation process