Give the names of formulae of the compounds described below :
(a) A compound of `N, H` and `O` which on heating gives laughing gas.
(b) A compound of `N,H` and `O` which on heating gives nitrogen gas.
( c) A compound of `Ca, P` and `O` which is found in bones.
(d) A compound of `N` and `H` which is used as refrigerant.
( e) A compound of `N` and `H` which behaves like an acid.
(f) A compound of `N` and `H` which is used as a rocket fuel.
(g) A compound of `N, H, S` and `O` which is used as a fertiliser.
(h) A compound of `N, H, S` and `O` which is used for making oximes.
(i) Two neutral oxides of nitrogen.
(j) The oxyacid of phosphorus is used for the preparation of `HBr` and `H I` from bromides and iodides respectively.