NH4NO3 and NH4NO2 are both ammonium salts, but they have some differences in terms of their hybridization, decomposition products, and the structure of the anion.

Hybridization of N of the anion:
- NH4NO3: In NH4NO3, the anion is NO3-, which consists of one nitrogen atom and three oxygen atoms. The nitrogen atom in the NO3- ion is sp2 hybridized. The three oxygen atoms are bonded to the nitrogen atom through sigma bonds, forming a trigonal planar structure.
- NH4NO2: In NH4NO2, the anion is NO2-, which consists of one nitrogen atom and two oxygen atoms. The nitrogen atom in the NO2- ion is sp2 hybridized, similar to NH4NO3. The two oxygen atoms are bonded to the nitrogen atom through sigma bonds, forming a bent structure.

Hybridization of N of the cation and anion both:
- Both NH4NO3 and NH4NO2 have the same cation, NH4+, which consists of a nitrogen atom bonded to four hydrogen atoms. The nitrogen atom in the NH4+ cation is sp3 hybridized. The four hydrogen atoms are bonded to the nitrogen atom through sigma bonds, forming a tetrahedral structure.

Decomposition products:
- NH4NO3: When heated, NH4NO3 decomposes to give off nitrogen gas (N2), water (H2O), and oxygen gas (O2). The decomposition reaction is as follows: 2NH4NO3(s) -> 2N2(g) + 4H2O(g) + O2(g)
- NH4NO2: When heated, NH4NO2 decomposes to give off nitrogen gas (N2) and water (H2O). The decomposition reaction is as follows: NH4NO2(s) -> N2(g) + 2H2O(g)

Structure of the anion:
- NH4NO3: The NO3- ion in NH4NO3 has a trigonal planar structure, with the nitrogen atom at the center and the three oxygen atoms arranged symmetrically around it.
- NH4NO2: The NO2- ion in NH4NO2 has a bent structure, with the nitrogen atom at the center, and the two oxygen atoms forming a bent shape around it.

In conclusion, NH4NO3 and NH4NO2 differ in terms of the hybridization of the nitrogen atom in the anion, the decomposition products upon heating, and the structure of the anion. NH4NO3 has an NO3- anion with sp2 hybridized nitrogen, decomposes to give nitrogen, water, and oxygen, and has a trigonal planar structure. NH4NO2 has an NO2- anion with sp2 hybridized nitrogen, decomposes to give nitrogen and water, and has a bent structure.