How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.
Pb(NO3)2 on heating gives a brown gas which undergoes dimerisation on cooling? Identify the gas
Why does NO2 dimerise?
Bond angle in `PH_(4)^(+)` is higher than that in PH3. Why?
What is the covalence of nitrogen in N2O5?
Why does the reactivity of nitrogen differ from phosphorus?
Give the resonating structures of NO2 and N2O5.
Explain why NH3 is basic while BiH3 is only feebly basic.