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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
Q

Heating effect of halide salts

AuCl3

A

AuCl3 -> AuCl + 2Cl

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26
Q

Heating effect of halide salts

Hg2Cl2

A

Hg2Cl2 -> Hg + HgCl2

Hg2Cl2 = calomel, HgCl2 = corrosive sublimate

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27
Q

Heating effect of halide salts

NH4Cl

A

NH4Cl -> NH3 + HCl

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28
Q

Heating effect of halide salts

PbCl4

A

PbCl4 -> PbCl2 + 2Cl

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29
Q

Heating effect of halide salts

PbBr4

A

PbBr4 -> PbBr2 + 2Br

30
Q

Heating effect of halide salts

HgI2

A

HgI2 –heat–> HgI2 –cool–> HgI2

Red ———-> Yellow ———> Yellow
^—————on rubbing—————–|

31
Q

Heating effect of halide salts

MgCl2.6H2O

A

MgO + 2HCl + 5H2O

Hydrolysis

32
Q

Heating effect of halide salts

2(FeCl3.6H2O)

A

2Fe2O3 + 6HCl + 9H2O

Hydrolysis

33
Q

Heating effect of halide salts

2(AlCl3.6H2O)

A

2Al2O3 + 6HCl + 9H2O

Hydrolysis

34
Q

Heating effect of halide salts

CoCl2.6H2O

A

CoCl2.6H2O (pink) –50°C–> CoCl2.4H2O (blue) –58°C–> CoCl2.2H2O (red violet) –140°C–> CoCl2 (blue, anhydrous)

Dehydration

Also for Ca, Sr, Ba

35
Q

Heating effect on

KMnO4

A

K2MnO4 + MnO2 + O2

KMnO4 = dark purple, K2MnO4 = green

36
Q

Heating effect on

K2Cr2O7

A

K2CrO4 + Cr2O3 + O2

K2Cr2O7 = orange, K2CrO4 = yellow

37
Q

Heating effect on

HCOONa

A

(at 350°C) Na2C2O4 + H2
(at T>350°C) Na2C2O4 -> Na2CO3 + C + CO + CO2

38
Q

Thermal Decomposition Reaction

Metal acetate (OAc)

A

Metal carbonate + CH3COCH3
Metal carbonate -> Metal oxide + CO2

Jo bhi carbonate break ho jaye

39
Q

Thermal Decomposition Reaction

Metal oxalate (C2O4)

A

Metal oxalate -> Metal carbonate + CO + CO2
(except Na2C2O4)
7Na2C2O4 -> 7Na2CO3 + 3C + CO + 3CO2

40
Q

Heating effect of ammonium salt

NO3-

A

N2O (only)

41
Q

Heating effect of ammonium salt

NO2-

42
Q

Heating effect of ammonium salt

ClO3-

43
Q

Heating effect of ammonium salt

(Cr2O7)2-

44
Q

Heating effect of ammonium salt

(IO3)-

45
Q

Heating effect of ammonium salt

Oxidising acid

46
Q

Heating effect of ammonium salt

(CO3)2-

47
Q

Heating effect of ammonium salt

(SO4)2-

48
Q

Heating effect of ammonium salt

OH-

49
Q

Heating effect of ammonium salt

S2-

50
Q

Heating effect of ammonium salt

Cl-

51
Q

Heating effect of ammonium salt

Non-oxidising acid

52
Q

Heating effect of acids

HNO3 (conc)

A

H2O + 2NO2 + O

53
Q

Heating effect of acids

HNO3 (dil)

A

H2O + 2NO +3O

54
Q

Heating effect of acids

H2SO4 (conc) —444°C–>

55
Q

Heating effect of acids

H2SO4 (conc) —800°C–>

A

H2O + SO2 + O

56
Q

Heating effect of acids

HNO2

A

H2O + 2NO + HNO3

57
Q

Heating effect of acids

H3PO2

A

PH3 + H3PO4

58
Q

Heating effect of acids

H3PO3

A

PH3 + H3PO4

59
Q

Heating effect of acids

H3PO4

A

H4P2O7 (Pyrophosphoric) -> (HPO3)n (Meta phosphoric) -> P2O5

PPM

60
Q

Heating effect of acids

H3BO3

A

(HBO2)n (meta boric) -> H2B4O7 (tetraboric) -> B2O3

BMT

61
Q

Heating effect of acids

H2SO3

A

H2SO4 + S↓ + H2O

62
Q

Heating effect of acids

HClO3

A

HClO4 + ClO2 + H2O

63
Q

Effect of heat on

Blue vitriol

64
Q

Effect of heat on

Green vitriol

65
Q

Effect of heat on

White vitriol

66
Q

Effect of heat on

Gypsum

67
Q

Effect of heat on

Epsom

68
Q

Effect of heat on

Glauber’s salt

69
Q

Effect of heat on

Dolomite

70
Q

Effect of heat on

White lead

Chemistry (13 decks)

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