question_answer 105)

    On heating lead (II) nitrate gives a brown gas "A". The gas "A" on cooling changes to colourless solid "B". Solid "B" on heating with NO changes to a blue solid 'C. Identify 'A', 'B' and 'C and also write reactions involved and draw the structures of 'B' and 'C'.

Answer:

                     on heating produces a brown coloured gas which may be NO2. Since, on reaction with  and on heating it produces N303 and N^04 respectively. Structures