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Chemistry > Types of Reactions > Flashcards

Types of Reactions Flashcards

Ion Exchange, Complex, Thermal decomposition

1
Q

For ppt exchange reaction to go forward:

A

Ksp of A > C

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2
Q

For ppt dissolution reaction to occur:
eg. H2CO3 _ HCN
H2CO3 _ H3BO3
CH3COOH _ H2CO3
HCl _ H2CO3

A

Acid used should be stronger than the acid formed
eg. H2CO3 > HCN
H2CO3 > H3BO3
CH3COOH > H2CO3
HCl > H2CO3

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3
Q

Complex formation reaction

d-block metal + SFL/WFL -> Complex
SFL or WFL?

A

SFL

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4
Q

Complex formation reaction

s/p-block metal + SFL/WFL -> Complex
SFL or WFL?

A

WFL

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5
Q

Complex formation reaction

M(s/p/d) + SFL/WFL -> Complex
SFL or WFL?

also M should be ?

A

M = amphoteric
WFL

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6
Q

Complex formation reaction

Noble metal + Base ->

Base (eg NaOH)

A

Metal oxide

Noble metal -> Ag, Hg, Au, Pt

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7
Q

Thermal Decomposition Reaction (CO3 2-, SO4 2-, OH-)

Na+, K+, Rb+, Cs+

A

No reaction

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8
Q

Thermal Decomposition Reaction (CO3 2-, SO4 2-, OH-)

Li or any other M

A

MO + CO2/SO3/H2O

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9
Q

Thermal Decomposition Reaction (CO3 2-, SO4 2-, OH-)

Ag, Au, Hg, Pt

A

Ag2CO3 -> Ag2O + CO2
Ag2O -> 2Ag + 1/2 O2
__________________________________
Ag2CO3 -> 2Ag + CO2 + 1/2 O2

O ke liye affinity kam hai

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10
Q

Thermal Decomposition Reaction (CO3 2-, SO4 2-, OH-)

(NH4)+

A

NH3 + CO2 + H2O

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11
Q

Thermal Decomposition Reaction (NO3-)

Na+, K+, Rb+, Cs+

A

MNO3 -> MNO2 + 1/2 O2
MNO2 -> M2O + N2 + 1/2 O2

For Na+, the temperatures are: 500°C and 800°C

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12
Q

Thermal Decomposition Reaction (NO3-)

Li or any other M

A

MO + NO2 + 1/2 O2

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13
Q

Thermal Decomposition Reaction (NO3-)

Ag, Au, Hg, Pt

A

Hg(NO3)2 -> Hg + NO2 + 1/2 O2

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14
Q

Thermal Decomposition Reaction (NO3-)

(NH4)+

A

2H20 + N2O

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15
Q

Thermal Decomposition Reaction (NO3-)

Mn2+

A

Mn(NO3)2 -> MnO + NO2 + O2
MnO + O2 -> MnO2
_____________________________________
Mn(NO3)2 -> MnO2 + 2NO2

**Forms only NO2

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16
Q

Thermal Decomposition Reaction (NO3-)

Be2+

A

Be(NO3)2 –125°C–> [Be4 O(NO3)6]
–T inc –> BeO + NO2 + 1/2 O2

**Forms Complex

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17
Q

Heating effect of oxides

Ag2O

A

Ag2O -> Ag + 1/2 O2

Ag2O = Brown

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18
Q

Heating effect of oxides

PbO

A

PbO -> PbO

hot = yellow (massicote) & cold = red (litharge)

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19
Q

Heating effect of oxides

ZnO

A

ZnO -> ZnO

cold = white & hot = yellow

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20
Q

Heating effect of oxides

Pb3O4

A

Pb3O4 -> PbO + O

Pb3O4 = red

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21
Q

Heating effect of oxides

K2O

A

K2O -> K2O

cold = white & hot = yellow

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22
Q

Heating effect of oxides

CrO5

A

CrO5 -> Cr2O3 + 1/2 O2

CroO5 = blue & Cr2O3 = green

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23
Q

Heating effect of oxides

HgO

A

HgO -> HgO -> Hg + O
yellow -> red -> black

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24
Q

Heating effect of halide salts

FeCl3

A

FeCl3 -> FeCl2 + Cl

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25
# Heating effect of halide salts AuCl3
AuCl3 -> AuCl + 2Cl
26
# Heating effect of halide salts Hg2Cl2
Hg2Cl2 -> Hg + HgCl2 | Hg2Cl2 = calomel, HgCl2 = corrosive sublimate
27
# Heating effect of halide salts NH4Cl
NH4Cl -> NH3 + HCl
28
# Heating effect of halide salts PbCl4
PbCl4 -> PbCl2 + 2Cl
29
# Heating effect of halide salts PbBr4
PbBr4 -> PbBr2 + 2Br
30
# Heating effect of halide salts HgI2
HgI2 --heat--> HgI2 --cool--> HgI2 Red ----------> Yellow ---------> Yellow ^---------------on rubbing-----------------|
31
# Heating effect of halide salts MgCl2.6H2O
MgO + 2HCl + 5H2O | Hydrolysis
32
# Heating effect of halide salts 2(FeCl3.6H2O)
2Fe2O3 + 6HCl + 9H2O | Hydrolysis
33
# Heating effect of halide salts 2(AlCl3.6H2O)
2Al2O3 + 6HCl + 9H2O | Hydrolysis
34
# Heating effect of halide salts CoCl2.6H2O
CoCl2.6H2O (pink) --50°C--> CoCl2.4H2O (blue) --58°C--> CoCl2.2H2O (red violet) --140°C--> CoCl2 (blue, anhydrous) | Dehydration ## Footnote Also for Ca, Sr, Ba
35
# Heating effect on KMnO4
K2MnO4 + MnO2 + O2 | KMnO4 = dark purple, K2MnO4 = green
36
# Heating effect on K2Cr2O7
K2CrO4 + Cr2O3 + O2 | K2Cr2O7 = orange, K2CrO4 = yellow
37
# Heating effect on HCOONa
(at 350°C) Na2C2O4 + H2 (at T>350°C) Na2C2O4 -> Na2CO3 + C + CO + CO2
38
# Thermal Decomposition Reaction Metal acetate (OAc)
Metal carbonate + CH3COCH3 Metal carbonate -> Metal oxide + CO2 | Jo bhi carbonate break ho jaye
39
# Thermal Decomposition Reaction Metal oxalate (C2O4)
Metal oxalate -> Metal carbonate + CO + CO2 (except Na2C2O4) 7Na2C2O4 -> 7Na2CO3 + 3C + CO + 3CO2
40
# Heating effect of ammonium salt NO3-
N2O (only)
41
# Heating effect of ammonium salt NO2-
N2
42
# Heating effect of ammonium salt ClO3-
N2
43
# Heating effect of ammonium salt (Cr2O7)2-
N2
44
# Heating effect of ammonium salt (IO3)-
N2
45
# Heating effect of ammonium salt Oxidising acid
N2O/N2
46
# Heating effect of ammonium salt (CO3)2-
NH3
47
# Heating effect of ammonium salt (SO4)2-
NH3
48
# Heating effect of ammonium salt OH-
NH3
49
# Heating effect of ammonium salt S2-
NH3
50
# Heating effect of ammonium salt Cl-
NH3
51
# Heating effect of ammonium salt Non-oxidising acid
NH3
52
# Heating effect of acids HNO3 (conc)
H2O + 2NO2 + O
53
# Heating effect of acids HNO3 (dil)
H2O + 2NO +3O
54
# Heating effect of acids H2SO4 (conc) ---444°C-->
H2O + SO3
55
# Heating effect of acids H2SO4 (conc) ---800°C-->
H2O + SO2 + O
56
# Heating effect of acids HNO2
H2O + 2NO + HNO3
57
# Heating effect of acids H3PO2
PH3 + H3PO4
58
# Heating effect of acids H3PO3
PH3 + H3PO4
59
# Heating effect of acids H3PO4
H4P2O7 (Pyrophosphoric) -> (HPO3)n (Meta phosphoric) -> P2O5 | PPM
60
# Heating effect of acids H3BO3
(HBO2)n (meta boric) -> H2B4O7 (tetraboric) -> B2O3 | BMT
61
# Heating effect of acids H2SO3
H2SO4 + S↓ + H2O
62
# Heating effect of acids HClO3
HClO4 + ClO2 + H2O
63
# Effect of heat on Blue vitriol
64
# Effect of heat on Green vitriol
65
# Effect of heat on White vitriol
66
# Effect of heat on Gypsum
67
# Effect of heat on Epsom
68
# Effect of heat on Glauber's salt
69
# Effect of heat on Dolomite
70
# Effect of heat on White lead

Chemistry (13 decks)

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