Question 1: The nitrogen oxide(s) that contains (s) N-N bind (s) is (are) (IIT JEE)
Answer: a, b & c
Question 2: The reactions of P4 with X lead selectively to P4O6. The X is
(b) A mixture of O2 and N2
(c) Moist O2
(d) O2 in the presence of aqueous NaOH
Solution: P4+3O2 +N2 →P4O6
In this reaction N2 acts as diluent and retards the further oxidation.
Question 3: Among the following compounds, the number of compounds that can react with PCl5 to give POCl3 is O2, CO2, SO2, H2O, H2SO4, P4O10.
PCl5 + SO2 → POCl3 + SOCl2
PCl5 + H2O → POCl3 + 2HCl
PCl5 + H2SO4 → POCl3 + SOCl2 + 2HCl
6PCl5 + P4O10 →10 POCl3