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Chemistry > Coordination Compound > Flashcards

Coordination Compound Flashcards

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1
Q

Primary valency

A

Oxidation state.

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2
Q

Secondary valency

A

Coordination number

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3
Q

CFT could not explain?

A

Order of Spectorchemical series

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4
Q

CFSE supports which type of stability?

A

Thermodynamic.

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5
Q

Relations of CFSE and wavelength and strength of ligand

A

Inverse with wavelength and direct with strength of ligand.

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6
Q

C2O4^2- is weak or strong

A

Can be both

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7
Q

[Ni(CO)4] hybridisation

A

Sp3

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8
Q

Reaction of cocl2+ 6H2O then with HCl conc.

A

[Co(H2O)6]cl2 (pink) and [CoCl]^2- (blue)

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9
Q

Is cuso4.4NH3.H2O complex compound or double salt

A

Coordinate

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10
Q

Nessler reagent

A

K2[HgI4]

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11
Q

How are low oxidation state stabilised in complex

A

Synergic bonding (pi electron acceptor ligand)

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12
Q

Symmetric and asymmetric configurations of electron

A

Either both t2 or e are singly or doubly filled

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13
Q

Stabilisation energy of case of octahedral t2g and eg

A

T2g by -0.4 (stabilised) and eg by 0.6 ( destabilised)

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14
Q

Copper tartarate complex

A

https://images.app.goo.gl/DeLtjHUDsKxC5iFj7

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15
Q

A.Fe4[Fe(CN)6]3
B. K3[Co(NO2)6]
C.(NH4)3 [As(Mo3O10)4]
D. Fe3(OH)2 (OAc)6]cl
Define solubility

A

D is soluble and B poorly soluble. A is Prussian blue.

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16
Q

Carnalite

A

KCl.MgCl2.6H2O

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17
Q

Mohr’s salt

A

FeSO4.(NH4)2SO4.6H2O

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18
Q

Alum

A

K2SO4.Al2(SO4)3.24H2O

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19
Q

Is it true that metals except transition metals form coordination compounds

A

No chlorophyll makes an coordination compound with Magnesium from S Block as it’s central atom.

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20
Q

Electrons from metals are shared to ligand in which orbital

A

Pi star orbital

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21
Q

Which bond in synergic bonding is strong and weak

A

Metal bond with carbon is strong while carbon and oxygen bond is weak.

22
Q

Sigma bonded complex

A

Ligand contribute only one electron. Eg. RMgX

23
Q

Pi bonded complex

A

Organic ligand with metal eg. zeise’s salt and ferosene

24
Q

Hepticity

A

In pi complex the no. Of carbon atoms attached to central metal. For eg hepticity of ferosene is 5

25
Q

Structure of Mn2(CO)8

A
26
Q

Co2(CO)8

A
27
Q

Effect of no. Of rings on stability of compound

A

Directly.

28
Q

Which one is more stable among Ni(dmg)2 or cu(acac)2

A

Ni(dmg)2 since due to n bonding 4 rings are formed. Check out the structure.

29
Q

Is hydrazine mono or bidentent

A

Mono since to be bidentent it will form 3 member ring which will be highly unstable

30
Q

Structure of oxalate

A
31
Q

Formula of EAN

A

Atomic no.- oxidation no.+CN*2 (valid only for Carbonyls) to check stability

32
Q

Why are dx2- y2 and dz2 in eg

A

Electron of ligand approach from axis that’s why the e density increases on axis and it becomes unstable. While dxy and dyz and dzx are in lower energy ie t2g

33
Q

What is g in t2g and eg

A

Gerade; which is for azimuthal quantum no. 4 g

34
Q

Why is there splitting in eg and t2g of coordination compounds

A

Because of the approach of ligands

35
Q

CFSE in 5d 4d 3d

A

5d>4d>3d

36
Q

Relation of delta g and delta octahedral

A

Delta t= 4/9 delta o

37
Q

Delta sp and delta o

A

Delta sp= 4/3 delta o

38
Q

Higher splitting absorbs shorter or longer wavelength

A

Shorter wavelength

39
Q

John teller distortion

A

Unsymmetrical configuration d9 d7(low spin) and d4(high spin)

40
Q

For 4d and 5d which are strong field ligands

A

All since inbuilt splitting in high

41
Q

Compounds with carbonyl are_____ hybridised

A

Sp3

42
Q

Brown ring compound

A

[Fe(H2O)5NO+]SO4

43
Q

Structure of Fe(CO)5

A

Sandwich structure

44
Q

Is it true all ligands are e donors

A

No some ligands are electron acceptor pi acids

45
Q

Colour of [CoCl(NH3)5]2+

A

Violet

46
Q

[co(NH3)5(H2O)]3+

A

Red

47
Q

Colour of [Co(NH3)5(H2O)]3+

A

Yellow orange

48
Q

[co(CN)6]3-

A

Pale yellow

49
Q

Colourof [cu(H2O)4]2+

A

Blue

50
Q

Ti(H2O)6]3+ colour

A

Violet

Chemistry (3 decks)

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