1. NI
2. NBr3
3. NCl3
4. NF3
NF<sub>3</sub>
1. cement
2. gypsum
3. anhydride
4. Mortar
gypsum
1. electron deficient compound
2. Lewis acid
3. ionic compound
4. covalent compound
ionic compound
1. hypo phosphorous acid
2. ortho phosphoric acid
3. pyro phosphoric acid
4. meta phosphoric acid
hypo phosphorous acid
1. H2
2. Na
3. AlF3
4. CO2
CO<sub>2</sub>
1. SiO2,Na2SiO3,CaSiO3
2. SiO2,Na2CO3,CaCO3
3. Na2CO3,K2CO3,SiO2
4. SiO2,PbCO3,CaSiO3
SiO<sub>2</sub>,PbCO<sub>3</sub>,CaSiO<sub>3</sub>
1. CO2,H2
2. CO,H2
3. CO2,N2,H2
4. CO2,N2
CO,H<sub>2</sub>
1. All the elements exhibit allotropy
2. Except nitrogen all elements exhibit allotropy
3. All elements except Nitrogen and bismuth exhibit allotropy
4. All elements except nitrogen and arsenic exhibit allotropy
All elements except nitrogen and arsenic exhibit allotropy
1. Platinum gauze
2. V2O5
3. Fe/Mo
4. MnO2
Platinum gauze
1. N2O4
2. NO
3. N2O3
4. N2
N<sub>2</sub>