(a)(i) Describe briefly the laboratory preparation of hydrogen gas from the action of steam on iron.
(ii)    Write the equation for the reaction in (a)(i).
(iii)   List three methods for the industrial preparation of hydrogen gas. 
                                                           
(b)Consider the following reaction equation:
   CO(g)    +   2H\(_{2(g)}\)                CH\(_3\)OH\(_{(g)}\) + 201 kJmol-J

Predict the effect of each of the following factors on the position of equilibrium:

(i)    decrease in temperature;
(ii)   increase in pressure;
(iii)  increase in concentration of CO\(_{(g)}\).                                                   

(c) (i)   Define condensation polymerization.
(ii)   Name two condensation polymers.
(iii)  Write the formula of ethylethanoate.                                                

(d) (i)   Define the term allotropy.
(ii)     Name two crystalline allotropes of carbon.
(iii)    State one use of each of the allotropes named in (d)(ii).     

(e)    State two differences between nitrogen (I) oxide and oxygen.