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EVERYTHING Flashcards

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1
Q

Color

Most of hydrated Cu(II) Salt

A

Blue

Exception: CuCl2.2H2O is green

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2
Q

Color

Anhydrous Co(II) Salt

A

Blue

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3
Q

Color

Cr(III) Salt
with S2O8 2-

A

Green
CrO42- + SO42-

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4
Q

Chrome Alum and color

A

KCr(SO4)2

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5
Q

[Cr(h2o)6]Cl3

A

Purple
Isomers: green

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6
Q

Mn2+

A

Light pink

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7
Q

Co(ii) salts hydrated

A

Light pink

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8
Q

Fe(III) Salts

A

Pale yellow or Brown

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9
Q

PbO2

A

Dark brown

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10
Q

Bi2S3
solubility

A

Dark brown in crystal
Black in ppt (BLACK)
Soluble in Dil HNO3
NO gas
Nitrate formed -> water soluble

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11
Q

HgI2
Excess KI

A

Red
[HgI4]2- (Colorless)

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12
Q

HgO
solubility:
naoh
acids

from Hg2+

A

Red

NaOH -> Converts to yellow ppt
Soluble in acids

Add NaOH
Helps distinguish between Hg2+ (Hg2)2+

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13
Q

ZnS
addition of dil hcl

A

White
ZnCl2 + H2S (Gas)

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14
Q

Carbonates of s-block

A

White

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15
Q

ZnCO3

A

White

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16
Q

CdS

A

Yellow

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17
Q

PbI2

A

Yellow
Soluble in excess of KI -> [PbI4]2-

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18
Q

Fe(NO3)3

A

Yellow

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19
Q

SnS2

A

Yellow

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20
Q

As2S3

A

Yellow

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21
Q

FeCl3

A

Yellow

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22
Q

As2S5

A

Yellow

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23
Q

Ag2S

A

Black

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24
Q

PbS
solubility?

A

Black
Soluble in dil HNO3
NO Gas
Nitrates formed -> soluble

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25
HgS solubility
Black Soluble in aqua regia HgCl2 + S + NO not in HNO3
26
FeS
Black ppt
27
CoS solubility in acids
Black Soluble in aqua regia -> CoCl2 + NO gas
28
NiS
Black Soluble in aqua regia
29
All black sulphides:
Ag Pb Hg Fe Co Ni Bi (only ppt) Cu
30
Sb2S3
Orange
31
Sb2S5
Orange
32
SnS
Brown Chocolate
33
I2
Violet
34
Cl2
Greenish Yellow
35
Br2
Reddish brown
36
PbCl2
White Soluble in hot water
37
Hg2Cl2 Color Solubility Oxidised NaOH
White Insoluble in dil Acids Dissolves in aqua regia Oxidised to HgCl2 NaOH -> Hg2O
38
AgCl solubility
White Insoluble in dil HNO3 Soluble in aq NH3
39
All white chlorides
PbCl2, Hg2Cl2, AgCl
40
Fe(OH)3 solubility in HCl NaOH NH4OH
Brown FeCl3 Soluble Insoluble Insoluble
41
Al(OH)3 Acidic/basic nature: Solubility in aq NH3 Solubility in NaOH
Gelatinous White Amphoteric No rxn (not soluble) [Al(OH)4]-
42
Cr(OH)3 acidic/basic nature: Solubility: NH3 NaOH Oxidation (H2O2, Na2O2)
Green Amphoteric [Cr(NH3)6] 3+ (Pink violet solution) [Cr(OH)4] - Na2CrO4 (yellow solution)
43
BaCO3
White
44
SrCO3
White
45
CaCO3
White
46
PbCrO4 solubility
Yellow Ppt Soluble in NaOH -> Pb[OH]4- Soluble in dil HNO3 -> Pb(NO3)2 +Cr2O7 2-
47
Deep Blue
Cu[(NH3)4]
48
Chocolate Precipitate
Cu2[Fe(CN)6] both +2 state
49
BiOCl
White
50
K3[Co(NO2)6] formed by
Yellow Co2+ + 7NO2- --> Yellow ppt + NO gas
51
NaH2SbO4
White Ppt
52
CaC2O4
White
53
Mg(NH4)PO4
White Ppt
54
AgI
Yellow Ppt
55
Na2CrO4
Yellow Solution
56
[Cr(NH3)6]3+
Pink Violet Solution
57
Co(OH)NO3 formed by? Excess NaOH Aq. NH3 no Air Aq NH3 with Air
Basic Blue ppt Co2+ NaOH + NO3- Co(OH)2 Ppt [Co(NH3)6]2+ Yellowish brown [Co(NH3)6]3+ Red brown
58
Na2SnO3
Black
58
BiI3 add h2o and heat
Black BiOI (orange)
58
[BiI4]-
Orange solution
58
BiOI
Orange
58
Cd(OH)2 Solubility in excess aq. NH3 Solubility in excess NaOH
Yellow Soluble -> [Cd(NH3)4]2+ Insoluble in Excess NaOH
58
(NH4)3AsO4.12MoO3
Canary Yellow Ppt
59
Hg
Black ppt
60
BaCrO4 Solubility in Acetic acid Solubility in Mineral Acid
Yellow Ppt Insoluble Highly Soluble
61
Fe(CNS)3
Blood Red
62
Blood Red
Fe(CNS)3
63
Canary Yellow
(NH4)3AsO4.12MoO3
64
Prussian Blue solubility in aq NaOH
Fe4[Fe(CN)6]3 Soluble -> Fe(OH)3 + [Fe(CN)6]4-
65
Apple Green
K3[Co(CO3)3]
66
Ni2O3
Black
67
MnO2
Black
68
BaC2O4
White
69
SrSO4
White Moderately insoluble
70
SrC2O4
White
71
White fumes
NH4Cl produce nh3 with strong alkali
72
Co(OH)2
Pink
73
[Co(NH3)6] 2+
Yellowish Brown
74
Nessler's Re-agent
K2HgI4 (COLORLESS) Confirmation test of NH3 --> Brown ppt or yellow coloration
75
NH3 with Nessler's
Brown Ppt/Yellow coloration O(Hg-NH2)(Hg-I)
76
[Co(NH3)6]3+
Red Brown
77
Co(CN)2
Reddish Brown
78
[Co(CN)6]4- decomposes in air to give
Brown Unstable with strong ligand-> [Co(CN)6]3 - Yellow
79
Ag2O
Brown Ppt Dissolves in aq NH3 and dil. HNO3
80
[Co(CN)6]3-
Yellow
81
K3[Co(NO2)6]
Yellow
82
Ni(OH2) Solubility in NaOH Solubility in Aq NH3
Green Insoluble Soluble -> [Ni(NH3)6]2+
83
[Ni(NH3)6]2+
Deep Blue Color
84
Ni(CN)2 Excess KCN
Green Ppt [Ni(CN)4]2-
85
[Ni(CN)4]2-
Yellow
86
Pb(NO3)2
Colorless
87
Cr2O7 2-
Orange
88
Pb(CN)2
White
89
AgBr
Yellow Soluble in Conc. NH3
90
AgF
Yellow Brown Solid Highly soluble in water
91
Only CrO4 that is not yellow
Ag2CrO4 (red brown Ppt) Hg2CrO4 (Red ppt)
92
Ag2CrO4 Solubility
Red brown soluble in dil HNO3 -> AgNO3 + Cr2O7 2- Soluble in aq NH3 -> [Ag(NH3)2]2+ CrO4 2- (yellow)
93
HgCl2 Solubility Oxidation of what produces using? NH3 Oxidised (SnCL2)
White Undissociated but dissolves in water Produced along with NO during oxidation of Hg2Cl2 using HNO3 NH3 -> White to black Hg(NH2)(Cl) Hg + SnCL4
94
Hg2O
Black Ppt insoluble in bases Soluble in dil. HNO3 Hg2O -> Hg + HgO
95
Hg2CrO4
Red Ppt gives Hg2O with NaoH (+ CrO4-)
96
CrO4 2- BaCl2 Oxidizing agent (H2O2/H+)
Yellow Yellow Ppt of BaCrO4 CrO5 (Blue)
97
Hg2I2
Green (Hg2)2+ + KI Gives this Excess KI gives Nessler's Re-agent
98
Hg2CO3
Yellow Ppt
99
(Hg2)2+ complex with KCN
NEVER forms complex
100
(Hg2)2+ + with KCN
Hg2(CN)2 -> Not stable disproportionation to give Hg + Hg(CN)2
101
Hg(CN)2
Soluble in water doesnt ionise
102
(Hg2)2+ + NH3 + NO3-
HgO.Hg(NH3)(NO2) white ppt + Hg (black ppt) nothing in Hg2+ though
103
CuS Solubility
Black Soluble in Dil HNO3 Soluble in Aq NH3
104
Cu2I2 source
White ppt CuI2 + I- --> this ppt + I2
105
I 3-
I2 + I- Number of lone pair of electrons is 9
106
Cu(CN)2 decomposes:
Yellow Ppt decomposes to (CN)2 + CuCN (White ppt)
107
CuCN
White ppt excess KCN gives [Cu(CN)4]3-
108
Cu(SCN)2 Decomposes
Black CuSCN + (SCN)2 Gas
109
CuSCN Excess KSCN
White ppt [Cu(SCN)4]
110
pseudo halides:
1. (CN)2 2. (SCN)2 Should have nitrogen in it
111
Cu(OH)2 excess ammonia excess NaOH
Blue ppt [Cu(NH3)4] 2+ INSOLUBLE IN EXCESS NaOH
112
Cu(NH3)4 2+
Deep blue color dsp2 (exception) para
113
CuO
Black Ppt Basic Not amphoteric
114
Cu2+ + K4[Fe(CN)6]
Cu2[Fe(CN)6] ferro
115
Cu2[Fe(CN)6] solubility in: dil ch3cook aq. nh3 strong acid
Chocolate brown Insoluble in dil ch3cook 2 complexes: 1. [cu(nh3)4]2+ 2. fe(cn)6 4- Decomposes to form HCN Gas
116
Cu2+ + K3[Fe(CN)6]
Cu3[Fe(CN)6]2 Ferri
117
Cu3[Fe(CN)6]2
Green Ppt
118
Cu2+ ferro --> ferri -->
chocolate brown ppt green ppt
119
Bi(OH)3 on heat on oxidising (h2o2) on [Sn(OH)4]2-
White ppt BiO.OH white ppt BiO3- --> Yellow Bi ppt + [Sn(OH)6] 2-
120
Bi
black ppt
121
Co(SCN)2 + Hg2+
Faint Blue Co[Hg(SCN)4]
122
Co[Hg(SCN)4]
Blue crystalline ppt
123
(Hg)2+ + NH3 + NO3-
HgO . Hg(NH2)(NO3) NO Hg black formed NH4+ Formed
124
HgO . Hg(NH2)(NO3)
White ppt
125
Cd(CN)2 solubility in excess KCN
White ppt [Cd(CN)4]2-
126
S
Milky white ppt
127
Fe(CN)2 excess KCN
NO COLOR FOUND K4[Fe(CN)6] Solution
128
K4[Fe(CN)6]
Yellow Solution
129
Complexes: 1.Fe3+ + (Fe2+ complex) 2. Fe2+ (Fe2+ Complex) absence of air 3. Fe3+ + (Fe3+ Complex) 4. Fe2+ + (Fe3+ Complex)
1. Prussian Blue Ppt 2. White Ppt 3. Brown Coloration converts to Prussian blue 4. Turnbull's blue
130
Fe(OH)2 Solubility in excess ammonia Solubility in excess NaOH
White Gelatinous Insoluble Insoluble
131
Fe3+ + (Fe2+ complex)
Prussian Blue Ppt Fe4(Fe(CN)6]3
132
Fe2+ (Fe2+ Complex) absence of air
White Ppt K2Fe[Fe(CN)6]
133
Fe3+ + (Fe3+ Complex)
Brown Coloration Fe[Fe(CN)6] converts to Prussian blue
134
Fe2+ + (Fe3+ Complex)
Turnbull's blue (same thing as Prussian blue)
135
Fe(SCN)3 reaction with?
Extreme red coloration Soluble but not disassociated F- - [FeF6]3- (colorless)
136
Fe3+ + CH3COO-
Fe3(OH)2(CH3COO)6 Red Brown
137
Fe3(OH)2(CH3COO)6 on heating
Red Brown Fe(OH)2CH3COO
138
Complex in FeCl3 test with phenol
[Fe(oPh)6]3-
139
CrO5 Soluble in?
Blue coloration Soluble in ether/amyl alcohol
140
[Al(OH)4]- + NH4Cl
Al(OH)3 + NH3
141
CoCl2
Blue in anhydrous Pink in hydrous
142
NiCl2
Yellow in anhydrous Green in hydrous
143
NH4SCN reaction associated?
Vogel Rxn Co2+ [Co(NCS)4]2- Blue
144
[Co(NCS)4]2-
Blue coloration
145
Ni2+ + DMG
Ni(DMG)2
146
DMG
Di methyl Glyoxime
147
Ni(DMG)2
Cherry Red Ppt Square planar chelation effect
148
ZnCl2 NaOH Excess NaOH
White Zn(OH)2 [Zn(OH)4]2- Always form tetrahedral complex
149
Zn2+ + [Fe(CN)6]4-
K2 Zn3 [Fe(CN)6]2 White ppt Insoluble in acids
150
K2 Zn3 [Fe(CN)6]2 Solubility in acids NaOH
White ppt Insoluble 2 Complexes: 1. [Zn(OH)4]2- 2. [Fe(CN)6]4- Soluble
151
Mn(OH)2 Solubility in excess of NaOH Oxidation (air)
White ppt Not soluble MnO(OH)2 Brown Ppt
152
KsP ____ from Be, Mg, Ca, Sr, Ba
DECREASES
153
CaSO4 solublity
Highly soluble
154
BaSO4 Solubility
White ppt
155
SrCrO4 Solubility in acetic acid
No ppt Gives solution Soluble in Acetic acid
156
CaCrO4
No ppt Gives solution
157
(NH4)2 (C2O4)
Ca Sr Ba ions produce white ppt
158
Ca2+ [Fe(CN)6]4-
K2Ca[Fe(CN)6] White ppt
159
Mg(OH)2 Solubility in excess NH3 Solubility in Ammonium Salts
White ppt NOT soluble in excess NH3 Soluble in Ammonium salts
160
Mg2+ + (CO3)2- in absence of
MgCO3.Mg(OH)2 AMMONIUM IONS else NH4+ (CO3)2- ---> HCO3- MgCO3 + HCO3- ---> Mg(HCO3)2
161
NH4+ (CO3)2- --->
HCO3-
162
MgCO3.Mg(OH)2
Basic white ppt
163
MgCO3 + HCO3- --->
Mg(HCO3)2
164
Di sodium hydrogen phosphate test NH4+ ions should be?
NaHPO4 for Mg2+ presence of NH4+ Mg(NH4)PO4 --> white ppt
165
Mg(NH4)PO4
Hydrated -> Yellow Non-hydrated --> White
166
Magneson Re-agent only in ___ medium
for Mg2+ Blue ppt due to formation of complex basic
167
NH4+ + KOH
NH3 gas liberated
168
HPO4 2- + Ammonium Molybdate
(NH4)3[P(Mo3O10)4] Yellow ppt
169
(NH4)3[P(Mo3O10)4]
Yellow ppt formed in test for HPO4 2- with ammonium molybdate

Salty (3 decks)

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