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Inorganic Chemistry > D and F Block > Flashcards

D and F Block Flashcards

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1
Q

Definition of transition elements

A

D block elements having unpaired e- or partially

filled d-orbital in any O.S.

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2
Q

elements that are not transition elements but they are d-block
elements.

A

Cd,Hg,Zn

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3
Q

Elements in 3D series

A

Sc,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn

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4
Q

Elements in 4D series

A

Y,Zr,Nb,Mo,Tc,Ru,Rh,Pd,Ag,Cd

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5
Q

D block elements with Exceptional Electronic config

and the only element with a difference of 2 electron?

A

Nb Cu Cr Rg Mo Tc Ru Rh Pd Au Ag Pt
(Navab Cu kare(Cr) Raag Maut Tak Rooh Raah Pade Aur Aaj Pitaai hogi)

only Pd has a difference of 2 electrons and rest have only one electron difference

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6
Q

why do transition elements have typical metallic properties

A

because they have strong metallic bonds, they are hard, and have high enthalpy of ionisation

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7
Q

why do second and third transition series have greater enthalpies of atomisation

A

shielding effect

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8
Q

shielding effect order of spdf

A

s>p>d>f

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9
Q

mettalic bonds depends on?

A

unpaired electrons

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9
Q

mettalic bonds depends on?

A

unpaired electrons

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10
Q

why do MP and BP of transition elements increase at first and then decrease

A

because the metallic bonding increass first and decreses as they are directly realted to unpaired electrons which also first increase then decrease

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11
Q

whats the most important feature of transition elements

A

low difference in energy of ns and (n-1)d

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12
Q

radius order of transition elemtns

A
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13
Q

oxidation state table

A
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14
Q

whats the most common OS In 3D series

A

+2

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15
Q

why are transition elemnts are good catalyts

A

because they have variable valencies, they form unstable intermediates with less activation energy
they have suitable surfaces for catalysts

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16
Q

TI,Zr,Hf atomic radius order

A
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17
Q

d block atomic readius order down the grp

A
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17
Q

color of Fe2+ and Fe3+

A

Fe2+ :- green

Fe3+ :- yellow

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18
Q

exception in the atomic radius order dwon the grp of d block

A
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19
Q

O.S of Fe and NO in sodium nitroprusside

A

O.S. of Fe= +2

O.S. of NO= +1

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20
Q

elements of D block first period

A

Sc Ti V Cr Mn Fe Co Ni Cu Zn

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21
Q

Eu(Z=63) Electronic configuration

A

[Xe] 4f7 6s2

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22
Q

the Cr-O-Cr bond in Cr2O7 ion (dichromate) is

A

non-linear and symmetrical

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23
Q

KMnO4 on heating gives?

A

K2MnO4 (green) + MnO2(black) + O2

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24
Q

V2O3, V2O4, V2O5 is basic or acidic or amphoteric?

A

V2O3:- basic
V2O4:- less basic
V2O5:- amphoteric

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25
Q

CrO, Cr2O3 is basic or acidic or amphoteric?

A

CrO:- Basic

Cr2O3:- Amphoteric

26
Q

Np(Z=93) electron configuration!?

A

4f14 5d10 6p6 7s2 5f4 6d1

27
Q

AgCl with water is soluble or insoluble?

A

insoluble

28
Q

CuCl2 with water is soluble or insoluble?

A

insoluble

29
Q

electronic configuration of Europium (Z=63)

A

Xe 4f7 6s2

30
Q

whats used in deacon’s process

A

CuCl2

30
Q

whats used in deacon’s process

A

CuCl2

31
Q

whats used in contact process

A

V2O5

32
Q

whats used cracking of HC

A

ZSM-5

33
Q

whats used in hydrogenation of vegetables oils

A

Ni

34
Q

which manganate is diamagnetic?

permanganate or manganate

A

parmagnatiec is diamagnetic

35
Q

potassium permangantate heated forms?

A
36
Q

which is the only element in F block which doesnt forms MO2 oxide type

A

Yb

37
Q

mention a CeO2 use

A

used in oxidation of aldehyde and ketones

38
Q

whats the O.S of V in VOSO4

A

+4

38
Q

EuSO4 in aqueous condition is strong oxidizing or reducing agent?

A

reducing agent

39
Q

Cr2O3 is what kinda oxide

A

amphoteric

40
Q

RuO4 acts as reducing or oxidising agent and why?

A

it acts as Oxidizing agent as the OS of Ru is +8

41
Q

density order of

Cr Zn Co Cu Fe

A
41
Q

density order of

Cr Zn Co Cu Fe

A
42
Q

which metal shows the M2+/M electrode potential value positive

and which metal shows the M+/M electrode potential value positive

A

Cu

Ag

43
Q

mischmetal consists of metals from where? lanthanoid or actinoid or both or none?

A

lanthanoids

44
Q

which lanthanoid doesnt shos +4 OS?

A

Eu

45
Q

some lanthanoid oxides can be used as?

A

phosphorous

46
Q

does permanganate show satisfactory result in presence of HCl

A

nope

47
Q

going right in the period does the catalytic activity increases or decreases for D block?

A

for hydrogenation reactions

the catalytic activity increased from grp 5 to grp 11 with maximum activity shown by grp 7-9

48
Q

NaCl with K2Cr2O7 and H2SO4 forms?

A
49
Q

CrO2Cl with NaOH forms

A
50
Q

change

A

it

51
Q

the atomic radius of Ag is closest to?

A

Au

52
Q

composition of Ruby

A
53
Q

why is the color of this compound violet?

A

because is absorbs yellow light

54
Q

whats used in wacker’s process(making of ethanol)

A

PdCl2

55
Q

TiCl4 + AlMe3 is used in?

A

preperation of polyethylene

zieglar natta catalyst

56
Q

are interstitial compound chemically reactive?

A

no

57
Q

Lu3+ is colorful or less?

A

color less as it has 4f14 config

58
Q

which has similar radius with Mo

A

W

59
Q

MnO2 with NaCl and H2SO4 forms?

A

.

60
Q

MnO2 with KOH and O2 forms?

A
60
Q

K2MnO4 with HCl

A
61
Q

KMnO4 with H2O and KI

A

Inorganic Chemistry (19 decks)

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