P block elements Flashcards
2Al(s) + 6HCl(aq)
2AlCl3(aq) + 3H2(g)
2Al(s) + 2OH ̅(aq) + 6H2O(l)
2[Al(OH)4] ̅(aq) + 3H2(g)
[Al(OH2)6]3+(aq) + H2O(l)
[Al(OH2)5(OH)]2+(aq) + H3O+(aq)
[Al(OH2)5(OH)]2+(aq) + H2O(l)
[Al(OH2)4(OH)2]+(aq) + H3O+(aq)
Al3+(aq) + 3OH ̅(aq)
Al(OH)3(s) (white gelatinous ppt)
Al(OH)3(s) + OH ̅(aq)
[Al(OH)4] ̅ (aq) or AlO2 ̅(aq) + 2H2O(l)
allotropic forms of carbon
Graphite, diamond and fullerenes
Carbon monoxide is mostly used as
a reducing agent in the production of iron. Also, CO
plays an important role in many catalytic reactions as a ligand due to the lone pair of electrons on the C atom
CO2(aq) + H2O(l)
H2CO3(aq)
H2CO3(aq) + H2O(l)
HCO3-(aq) + H3O+(aq)
HCO3-(aq) + H2O(l)
CO3 2-(aq) + H3O+(aq)
CO2(g) + 2NaOH(aq)
Na2CO3(aq) + H2O(l)
Na2CO3(aq) + excess CO2(g) + H2O(l)
2NaHCO3(aq)
N2(g) + 2O2(g)
2NO2(g)
3HNO2(aq)
HNO3(aq) + 2NO(g) + H2O(l)
2NO(g) + O2(g)
2NO2(g)
4HNO3(aq)
4NO2(g) + O2(g) + 2H2O(l)
Mg(s) + dil. 2HNO3(aq)
Mg(NO3)2(aq) + H2(g)
Mg(s) + conc. 4HNO3(l)
Mg(NO3)2(aq) + 2NO2(g) + 2H2O(l)
3Cu(s) + dil. 8HNO3(aq)
3Cu(NO3)2(aq) + 2NO(g) + 4H2O(l)
Cu(s) + conc. 4HNO3(l)
Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)
C(s) + conc. 4HNO3(l)
CO2(g) + 4NO2(g) + 2H2O(l)
S(s) + conc. 6HNO3(l)
H2SO4(l) + 6NO2(g) + 2H2O(l)
NH3(g) + H2O(l)
NH4OH(aq)
NH4OH(aq)
NH4+(aq) + OH ̅(aq)
2NH4OH(aq) + dil. H2SO4(aq)
(NH4)2SO4(aq) + 2H2O(l)
NH4+(aq) + H2O(l)
NH3(aq) + H3O+(l)
NH4Cl(aq) + NaOH(aq)
NaCl(aq) + NH3 (g) + H2O(l)
excess ammonia, 2NH3(g) + 3Cl2(g)
N2(g) + 6HCl(g)
Excess 3Cl2(g) + NH3(g)
3HCl(g) + NCl3(l)
NCl3(l) + 3H2O(l)
NH3(g) + 3HOCl(aq)
NH3(g) + HCl(g)
NH4Cl(s)
3CuO(s) + 2NH3(g)
N2(g) + 3Cu(s) + 3H2O(g)
2Na(s) + 2NH3(l)
2NaNH2(l) + H2(g)
3Mg(s) + 2NH3(l)
Mg3N2(l) + 3H2(g)
(NH4)2CO3(s)
2NH3(g) + CO2(g) + H2O(g)
NH4Cl(s)
NH3(g) + HCl(g)
(NH4)2SO4(s)
NH3(g) + H2SO4(g)*
NH4NO2(s)
N2(g) + 2H2O(g)
NH4NO3(s)
N2O(g) + 2H2O(g)
(NH4)2Cr2O7(s)
N2(g) + Cr2O3(s) + 4H2O(g)
NH4+(aq) + OH¯(aq)
NH3(g) + H2O(l)
NH3(g) + HCl(g)
NH4Cl(s) white fumes
2NO3ˉ (aq) + 4H2SO4(l) + 6Fe2+(aq)
6Fe3+(aq) + 2NO(g) + 4SO42ˉ (aq) + 4 H2O(l)
Fe2+(aq)+ NO(g)
[Fe(NO)]2+(aq) brown colour
3NO3ˉ (aq) + 8Al(s) + 5OHˉ(aq) + 18H2O(l)
3NH3(g) + 8[Al(OH)4]ˉ(aq)
2H2O(l)
H3O+(aq) + OH-(aq)
H2O(l) + HCl(aq)
H3O+(aq) + Cl-(aq)
H2O(l) + NH3(aq)
NH4+(aq) + OH-(aq)
2H2O2(aq)
O2(g) + 2H2O(l)
2KClO3(s)
2KCl(s) + 3O2(g), heating in the presence of MnO2 or Pt
NaOH(aq) + excess H2S(g)
NaHS(s) + H2O(l)
2NaOH(aq) + limited H2S(g)
Na2S(s) + 2H2O(l)
2Na(s) + excess 2H2S(g)
2NaHS(s) + H2(g)
2Na(s) + limited H2S(g)
Na2S(s) + H2(g)
Mg(s) + H2S(g)
MgS(s) + H2(g)
2Mg(s) + SO2(g)
2MgO(s) + S(s)
3Mg(s) + SO2(g)
2MgO(s) + MgS(s)
SO3(g) + H2O(l)
H2SO4(aq)
H2SO4(aq) + H2O(l)
HSO4-(aq) + H3O+(aq)
HSO4-(aq) + H2O(l)
SO42-(aq) + H3O+(aq)
S(s) + 2H2SO4(l)
3SO2(g) + 2H2O(l)
C(s) + 2H2SO4(l)
CO2(g) + 2SO2(g) + 2H2O(l)
H2SO4(aq) + 2H2O(l)
SO42-(aq) + 2H3O+(aq)
H2S2O3(aq)
S(s) + SO2(g) + H2O(l)
C6H12O6(s) with conc.H2SO4
6C(s) + 6H2O(g)
C2H5OH(l) with conc.H2SO4
C2H4(g) + H2O(l)
Cl2(aq) + 2Br-(aq)
2Cl-(aq) + Br2(aq)
Br2(aq) + 2I-(aq)
2Br-(aq) + I2(aq)
AgCl
Colour and solubility in ammonia
White
Dissolves in dil. aqueous ammonia
AgBr
Colour and solubility in ammonia
Pale yellow
Dissolves in conc. aqueous ammonia
AgI
Colour and solubility in ammonia
Yellow
Insoluble in both dil. and conc. aqueous ammonia
Oxidizing power of oxoacids of chlorine
HClO > HClO2 > HClO3 > HClO4
SiCl4(l) + less 2H2O(l)
4HCl(aq) + SiO2(s)
PCl5(l) + H2O(l)
POCl3(aq) + 2HCl(aq)
SiCl4 (l) +excess 3H2O(l)
4HCl(aq) + H2SiO3(aq)
NCl3(l) + 3H2O(l)
NH3(aq) + 3HOCl(aq)
PCl3(l) + 3H2O(l)
H3PO3(aq) + 3HCl(aq)
PCl5(l) + 4H2O(l)
H3PO4(aq) + 5HCl(aq)
AsCl3(s) + 3H2O(l)
H3AsO3(aq) + 3HCl(aq)
SbCl3(aq) + H2O(l)
SbOCl(s) + 2HCl(aq)
BiCl3(aq) + H2O(l)
BiOCl(s) + 2HCl(aq)
Cl2(g) + H2O(l)
HOCl(aq) + HCl(aq)
Cl2(g) + cold and dil. 2NaOH(aq)
NaCl(aq) + NaOCl(aq) + H2O(l)
3Cl2(g) + conc. 6NaOH(aq)
5NaCl(aq) + NaClO3(aq) + 3H2O(l)
Lime water composition
Ca(OH)2
Nitrous acid
HNO2
Weak acid
Binary acids
Acids containing H+ groups only O is absent
Allotropes of Phosphrous
White, red and black
Amphiprotic compound
They can either donate or accept a proton. Therefor it can act as an acid or base.
e.g: water
NH3 + limited H2S =
(NH4)2S
NH3 + excess H2S
NH4HS
Variation of boiling points of hydrides of group 17
HF will have the highest boiling point due to the presence of hydrogen bonds.
HCl to HI boiling point increases due to the increasing molar mass. So that the London forces will be greater when going down the group.
Gases having characteristics smells
SO2 - burnt matches
H2S - rotten egg smell
NH3
Which anion is responsible for giving out a gas with a pungent smell and a yellow turbidity
S2O3 2-
Although a reaction should take place spontaneously according to calculation, this does not happen practically, what will be the reason?
The activation energy of the reaction having a larger value
Excess NH3 + Cl2
N2 + NH4Cl
Dimers of nitogen
N204
N205
Classification of S
2 main types known as crystalline and amorphous
Crystalline structures are rhombic sulfur and monoclinic sulfur
Amorphous structures are plastic, colloidal and milk of sulfur