1. N2O3
2. N2O4
3. N2O5
4. N2O
N2O5
1. 0.1M
2. 0.05M
3. 0.2M
4. 0.01M
0.05M
1. 19p;20n and 19e-
2. 19p;20n and 20e-
3. 20p;19n and 20e-
4. 20p;19n and 19e-
19p;20n and 19e-
1. aqua regia
2. hydroflouric acid
3. oleum
4. fuming HNO3
fuming HNO3
1. Methane
2. chloropicrin
3. nitro methane
4. nitrogen
chloropicrin
1. Ca(CN)2+C
2. Ca NCN
3. CaCN2+Graphite
4. CaC2+N2
CaCN2+Graphite
1. Hypophosphoric acid and two
2. Metaphosphoric acid and two
3. Hypophosphoric acid and one
4. Metaphosphoric acid and one
Hypophosphoric acid and one
1. +2
2. +1
3. -2
4. -1
+2
1. Phosphides
2. Hypophosphites
3. Phosphites
4. Phosphates
Phosphites
1. H2Te
2. H2S
3. H2Se
4. H2O
H2Te