(a)[2]
Give two reasons why nitrogen has such low reactivity.
(b(i))[1]
Write an equation to show a mixture of NO and NO$_2$ being formed in reaction 1.
(b(ii))[1]
State the formulae of the products formed in reaction 2.
(b(iii))[1]
State one environmental effect of reaction 3.
(c(i))[2]
Using the information in (c), complete Table 3.1.
(c(ii))[1]
Explain how the presence of a catalyst changes the reaction.
(c(iii))[2]
State and explain what happens, if anything, to the rate of the Haber process when the pressure is lowered.
(d(i))[2]
Complete Fig. 3.2 to display the dot-and-cross diagram for N$_2$F$_2$. Show only the outer electrons.
(d(ii))[1]
Deduce the hybridisation of the N atoms present in N$_2$F$_2$.
(d(iii))[2]
Draw a diagram of the $\pi$ bond between the N atoms in N$_2$F$_2$ and explain how it is formed.