Which oxide of nitrogen is paramagnetic?
Nitrous oxide
Dinitrogen pentoxide
Nitrogen dioxide
Dinitrogen trioxide
Which of the following is not a greenhouse gas?
(a) carbon dioxide
(b) nitrous oxide
(c) methane
(d) nitrogen
From the following list of substances. choose one substance in each case which matches the description given below :
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate. zinc carbonate.
(a) A nitrate which gives off only oxygen when heated.
(b) A nitrate which on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.
(c) A nitrate which gives off oxygen and nitrogen dioxide when heated.
Gases evolved during the thermal decomposition of mercuric nitrate Hg(NO3)2 are: