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Salty > EVERYTHING > Flashcards

EVERYTHING Flashcards

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
Q

HgS
solubility

A

Black
Soluble in aqua regia
HgCl2 + S + NO

not in HNO3

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26
Q

FeS

A

Black ppt

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27
Q

CoS
solubility in acids

A

Black
Soluble in aqua regia -> CoCl2 + NO gas

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28
Q

NiS

A

Black
Soluble in aqua regia

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29
Q

All black sulphides:

A

Ag
Pb
Hg
Fe
Co
Ni
Bi (only ppt)
Cu

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30
Q

Sb2S3

A

Orange

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31
Q

Sb2S5

A

Orange

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32
Q

SnS

A

Brown Chocolate

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33
Q

I2

A

Violet

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34
Q

Cl2

A

Greenish Yellow

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35
Q

Br2

A

Reddish brown

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36
Q

PbCl2

A

White
Soluble in hot water

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37
Q

Hg2Cl2
Color
Solubility
Oxidised
NaOH

A

White
Insoluble in dil Acids
Dissolves in aqua regia
Oxidised to HgCl2
NaOH -> Hg2O

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38
Q

AgCl
solubility

A

White

Insoluble in dil HNO3
Soluble in aq NH3

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39
Q

All white chlorides

A

PbCl2, Hg2Cl2, AgCl

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40
Q

Fe(OH)3
solubility in
HCl
NaOH
NH4OH

A

Brown
FeCl3 Soluble
Insoluble
Insoluble

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41
Q

Al(OH)3
Acidic/basic nature:
Solubility in aq NH3
Solubility in NaOH

A

Gelatinous White
Amphoteric
No rxn (not soluble)
[Al(OH)4]-

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42
Q

Cr(OH)3
acidic/basic nature:
Solubility:
NH3
NaOH
Oxidation (H2O2, Na2O2)

A

Green
Amphoteric
[Cr(NH3)6] 3+ (Pink violet solution)
[Cr(OH)4] -
Na2CrO4 (yellow solution)

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43
Q

BaCO3

A

White

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44
Q

SrCO3

A

White

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45
Q

CaCO3

A

White

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46
Q

PbCrO4
solubility

A

Yellow Ppt
Soluble in NaOH -> Pb[OH]4-
Soluble in dil HNO3 -> Pb(NO3)2 +Cr2O7 2-

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47
Q

Deep Blue

A

Cu[(NH3)4]

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48
Q

Chocolate Precipitate

A

Cu2[Fe(CN)6]
both +2 state

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49
Q

BiOCl

A

White

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50
Q

K3[Co(NO2)6]
formed by

A

Yellow
Co2+ + 7NO2- –> Yellow ppt + NO gas

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51
Q

NaH2SbO4

A

White Ppt

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52
Q

CaC2O4

A

White

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53
Q

Mg(NH4)PO4

A

White Ppt

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54
Q

AgI

A

Yellow Ppt

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55
Q

Na2CrO4

A

Yellow Solution

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56
Q

[Cr(NH3)6]3+

A

Pink Violet Solution

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57
Q

Co(OH)NO3
formed by?
Excess NaOH
Aq. NH3 no Air
Aq NH3 with Air

A

Basic Blue ppt
Co2+ NaOH + NO3-

Co(OH)2 Ppt
[Co(NH3)6]2+ Yellowish brown
[Co(NH3)6]3+ Red brown

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58
Q

Na2SnO3

A

Black

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58
Q

BiI3
add h2o and heat

A

Black

BiOI (orange)

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58
Q

[BiI4]-

A

Orange solution

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58
Q

BiOI

A

Orange

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58
Q

Cd(OH)2
Solubility in excess aq. NH3
Solubility in excess NaOH

A

Yellow
Soluble -> [Cd(NH3)4]2+
Insoluble in Excess NaOH

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58
Q

(NH4)3AsO4.12MoO3

A

Canary Yellow Ppt

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59
Q

Hg

A

Black ppt

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60
Q

BaCrO4
Solubility in Acetic acid
Solubility in Mineral Acid

A

Yellow Ppt
Insoluble
Highly Soluble

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61
Q

Fe(CNS)3

A

Blood Red

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62
Q

Blood Red

A

Fe(CNS)3

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63
Q

Canary Yellow

A

(NH4)3AsO4.12MoO3

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64
Q

Prussian Blue
solubility in aq NaOH

A

Fe4[Fe(CN)6]3
Soluble -> Fe(OH)3 + [Fe(CN)6]4-

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65
Q

Apple Green

A

K3[Co(CO3)3]

66
Q

Ni2O3

67
Q

MnO2

68
Q

BaC2O4

69
Q

SrSO4

A

White
Moderately insoluble

70
Q

SrC2O4

71
Q

White fumes

A

NH4Cl

produce nh3 with strong alkali

72
Q

Co(OH)2

73
Q

[Co(NH3)6] 2+

A

Yellowish Brown

74
Q

Nessler’s Re-agent

A

K2HgI4 (COLORLESS)
Confirmation test of NH3 –> Brown ppt or yellow coloration

75
Q

NH3 with Nessler’s

A

Brown Ppt/Yellow coloration
O(Hg-NH2)(Hg-I)

76
Q

[Co(NH3)6]3+

77
Q

Co(CN)2

A

Reddish Brown

78
Q

[Co(CN)6]4-
decomposes in air to give

A

Brown
Unstable with strong ligand-> [Co(CN)6]3 - Yellow

79
Q

Ag2O

A

Brown Ppt
Dissolves in aq NH3 and dil. HNO3

80
Q

[Co(CN)6]3-

81
Q

K3[Co(NO2)6]

82
Q

Ni(OH2)
Solubility in NaOH
Solubility in Aq NH3

A

Green
Insoluble
Soluble -> [Ni(NH3)6]2+

83
Q

[Ni(NH3)6]2+

A

Deep Blue Color

84
Q

Ni(CN)2
Excess KCN

A

Green Ppt
[Ni(CN)4]2-

85
Q

[Ni(CN)4]2-

86
Q

Pb(NO3)2

87
Q

Cr2O7 2-

88
Q

Pb(CN)2

89
Q

AgBr

A

Yellow
Soluble in Conc. NH3

90
Q

AgF

A

Yellow Brown Solid
Highly soluble in water

91
Q

Only CrO4 that is not yellow

A

Ag2CrO4 (red brown Ppt)
Hg2CrO4 (Red ppt)

92
Q

Ag2CrO4

Solubility

A

Red brown
soluble in dil HNO3 -> AgNO3 + Cr2O7 2-
Soluble in aq NH3 -> [Ag(NH3)2]2+ CrO4 2- (yellow)

93
Q

HgCl2
Solubility
Oxidation of what produces using?
NH3
Oxidised (SnCL2)

A

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
Q

Hg2O

A

Black Ppt
insoluble in bases
Soluble in dil. HNO3

Hg2O -> Hg + HgO

95
Q

Hg2CrO4

A

Red Ppt
gives Hg2O with NaoH (+ CrO4-)

96
Q

CrO4 2-

BaCl2
Oxidizing agent (H2O2/H+)

A

Yellow
Yellow Ppt of BaCrO4
CrO5 (Blue)

97
Q

Hg2I2

A

Green
(Hg2)2+ + KI Gives this
Excess KI gives Nessler’s Re-agent

98
Q

Hg2CO3

A

Yellow Ppt

99
Q

(Hg2)2+ complex with KCN

A

NEVER forms complex

100
Q

(Hg2)2+ + with KCN

A

Hg2(CN)2 -> Not stable
disproportionation to give Hg + Hg(CN)2

101
Q

Hg(CN)2

A

Soluble in water
doesnt ionise

102
Q

(Hg2)2+ + NH3 + NO3-

A

HgO.Hg(NH3)(NO2) white ppt
+
Hg (black ppt) nothing in Hg2+ though

103
Q

CuS
Solubility

A

Black
Soluble in Dil HNO3
Soluble in Aq NH3

104
Q

Cu2I2
source

A

White ppt
CuI2 + I- –> this ppt + I2

105
Q

I 3-

A

I2 + I-
Number of lone pair of electrons is 9

106
Q

Cu(CN)2
decomposes:

A

Yellow Ppt
decomposes to (CN)2 + CuCN (White ppt)

107
Q

CuCN

A

White ppt
excess KCN gives [Cu(CN)4]3-

108
Q

Cu(SCN)2
Decomposes

A

Black
CuSCN + (SCN)2 Gas

109
Q

CuSCN
Excess KSCN

A

White ppt
[Cu(SCN)4]

110
Q

pseudo halides:

A
  1. (CN)2
  2. (SCN)2
    Should have nitrogen in it
111
Q

Cu(OH)2

excess ammonia
excess NaOH

A

Blue ppt
[Cu(NH3)4] 2+
INSOLUBLE IN EXCESS NaOH

112
Q

Cu(NH3)4 2+

A

Deep blue color
dsp2 (exception)
para

113
Q

CuO

A

Black Ppt
Basic
Not amphoteric

114
Q

Cu2+ + K4[Fe(CN)6]

A

Cu2[Fe(CN)6]
ferro

115
Q

Cu2[Fe(CN)6]
solubility in:

dil ch3cook
aq. nh3
strong acid

A

Chocolate brown

Insoluble in dil ch3cook

2 complexes:
1. [cu(nh3)4]2+
2. fe(cn)6 4-

Decomposes to form HCN Gas

116
Q

Cu2+ + K3[Fe(CN)6]

A

Cu3[Fe(CN)6]2
Ferri

117
Q

Cu3[Fe(CN)6]2

118
Q

Cu2+
ferro –>
ferri –>

A

chocolate brown ppt
green ppt

119
Q

Bi(OH)3
on heat
on oxidising (h2o2)
on [Sn(OH)4]2-

A

White ppt
BiO.OH white ppt

BiO3- –> Yellow

Bi ppt + [Sn(OH)6] 2-

120
Q

Bi

121
Q

Co(SCN)2

+ Hg2+

A

Faint Blue

Co[Hg(SCN)4]

122
Q

Co[Hg(SCN)4]

A

Blue crystalline ppt

123
Q

(Hg)2+ + NH3 + NO3-

A

HgO . Hg(NH2)(NO3)
NO Hg black formed
NH4+ Formed

124
Q

HgO . Hg(NH2)(NO3)

125
Q

Cd(CN)2
solubility in excess KCN

A

White ppt
[Cd(CN)4]2-

126
Q

S

A

Milky white ppt

127
Q

Fe(CN)2
excess KCN

A

NO COLOR FOUND

K4[Fe(CN)6] Solution

128
Q

K4[Fe(CN)6]

A

Yellow Solution

129
Q

Complexes:
1.Fe3+ + (Fe2+ complex)
2. Fe2+ (Fe2+ Complex) absence of air
3. Fe3+ + (Fe3+ Complex)
4. Fe2+ + (Fe3+ Complex)

A
  1. Prussian Blue Ppt
  2. White Ppt
  3. Brown Coloration converts to Prussian blue
  4. Turnbull’s blue
130
Q

Fe(OH)2
Solubility in excess ammonia
Solubility in excess NaOH

A

White Gelatinous
Insoluble
Insoluble

131
Q

Fe3+ + (Fe2+ complex)

A

Prussian Blue Ppt
Fe4(Fe(CN)6]3

132
Q

Fe2+ (Fe2+ Complex) absence of air

A

White Ppt
K2Fe[Fe(CN)6]

133
Q

Fe3+ + (Fe3+ Complex)

A

Brown Coloration Fe[Fe(CN)6] converts to Prussian blue

134
Q

Fe2+ + (Fe3+ Complex)

A

Turnbull’s blue (same thing as Prussian blue)

135
Q

Fe(SCN)3
reaction with?

A

Extreme red coloration
Soluble but not disassociated

F- - [FeF6]3- (colorless)

136
Q

Fe3+ + CH3COO-

A

Fe3(OH)2(CH3COO)6
Red Brown

137
Q

Fe3(OH)2(CH3COO)6
on heating

A

Red Brown
Fe(OH)2CH3COO

138
Q

Complex in FeCl3 test with phenol

A

[Fe(oPh)6]3-

139
Q

CrO5
Soluble in?

A

Blue coloration
Soluble in ether/amyl alcohol

140
Q

[Al(OH)4]- + NH4Cl

A

Al(OH)3 + NH3

141
Q

CoCl2

A

Blue in anhydrous
Pink in hydrous

142
Q

NiCl2

A

Yellow in anhydrous
Green in hydrous

143
Q

NH4SCN
reaction associated?

A

Vogel Rxn
Co2+
[Co(NCS)4]2- Blue

144
Q

[Co(NCS)4]2-

A

Blue coloration

145
Q

Ni2+ + DMG

146
Q

DMG

A

Di methyl Glyoxime

147
Q

Ni(DMG)2

A

Cherry Red Ppt
Square planar
chelation effect

148
Q

ZnCl2
NaOH
Excess NaOH

A

White
Zn(OH)2
[Zn(OH)4]2-
Always form tetrahedral complex

149
Q

Zn2+ + [Fe(CN)6]4-

A

K2 Zn3 [Fe(CN)6]2 White ppt
Insoluble in acids

150
Q

K2 Zn3 [Fe(CN)6]2
Solubility in acids
NaOH

A

White ppt

Insoluble
2 Complexes:
1. [Zn(OH)4]2-
2. [Fe(CN)6]4-
Soluble

151
Q

Mn(OH)2
Solubility in excess of NaOH
Oxidation (air)

A

White ppt
Not soluble
MnO(OH)2 Brown Ppt

152
Q

KsP ____ from Be, Mg, Ca, Sr, Ba

153
Q

CaSO4 solublity

A

Highly soluble

154
Q

BaSO4
Solubility

155
Q

SrCrO4
Solubility in acetic acid

A

No ppt
Gives solution
Soluble in Acetic acid

156
Q

CaCrO4

A

No ppt
Gives solution

157
Q

(NH4)2 (C2O4)

A

Ca
Sr
Ba

ions produce white ppt

158
Q

Ca2+ [Fe(CN)6]4-

A

K2Ca[Fe(CN)6]
White ppt

159
Q

Mg(OH)2
Solubility in excess NH3
Solubility in Ammonium Salts

A

White ppt
NOT soluble in excess NH3
Soluble in Ammonium salts

160
Q

Mg2+ + (CO3)2-
in absence of

A

MgCO3.Mg(OH)2
AMMONIUM IONS

else
NH4+ (CO3)2- —> HCO3-
MgCO3 + HCO3- —> Mg(HCO3)2

161
Q

NH4+ (CO3)2- —>

162
Q

MgCO3.Mg(OH)2

A

Basic white ppt

163
Q

MgCO3 + HCO3- —>

164
Q

Di sodium hydrogen phosphate test
NH4+ ions should be?

A

NaHPO4
for Mg2+
presence of NH4+

Mg(NH4)PO4 –> white ppt

165
Q

Mg(NH4)PO4

A

Hydrated -> Yellow
Non-hydrated –> White

166
Q

Magneson Re-agent
only in ___ medium

A

for Mg2+
Blue ppt due to formation of complex

basic

167
Q

NH4+ + KOH

A

NH3 gas liberated

168
Q

HPO4 2- + Ammonium Molybdate

A

(NH4)3[P(Mo3O10)4]
Yellow ppt

169
Q

(NH4)3[P(Mo3O10)4]

A

Yellow ppt
formed in test for HPO4 2- with ammonium molybdate

Salty (3 decks)

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