Font size
WorksheetsQuizz 12
Total questions: 124
Worksheet time: 45mins
Q2. The melting and boiling point along 2nd and 3rd period
A. Increases from left to right
B. Decrease from left to right
C. increases upto group IVA and then decreases
D. decreases up to group IV A and then increases
Q.11 Which pair of transition elements shows abnormal electronic configuration?
A. Sc and Zn
C. Cu and Sc
B. Zn and Cu
D. Cu and Cr
Q.12 In which of the following pairs, the radius of the second atom is smaller than that of the first atom
A. Mg, Na
B. Sr, Ca
C. N, P
D. Cl, Br
Q.13 Which property of the first six continuously increases numerically?
A. Atomic radius
C. First ionization energy
B.Maximum oxidation state in oxide
D. Melting point
highest oxidation state of manganese is
+7
-7
+6
+4
highest oxidation state in all transition elements is
+8
+7
+5
+1
which of the foloowing are responsible for the color developed in transition metal compounds?
s - orbital
p orbital
d - orbital
f - orbital
all 3d elements show an oxidation state of
+1
+2
+3
0
stability of Cu metal is due to ___ filling of d-orbital?
half
completely
partially
quarterly
which of the elements has 7 electrons in d subshells?
zn
cobalt
copper
iron
the element with the highest binding energy is
V
T
So
Cr
Which pair of transition elements show abnormal eletronic configuration
Copper and scandium
Scandium and Zinc
Zinc and copper
Copper and chromium
Transaction compounds which occur as try positive ions have no
4s electron
3p electrons
3S electrons
To a se electrons
in (ti(h2o)3+ Which colour is transmitted
Yellow
Blue and red
Blue and yellow
Red and yellow
Number of unpaired electrons are maximum in
V + 3
MN + 2
Fe + 3
cr + 3
When light is exposed to a Transition Element then the electrons jump from lower orbitals to higher orbitals in
Orbitals of s subshell
Orbitals of d subshell
Orbitals of P sub shell
Orbitals of different shelles
Which of the following D blocks element and show the highest oxidation number in its compounds
Chromium
Manganese
Copper
Iron
Oxidation state of transition elements is usually
Variable
Single
Constant
Infinite
At which Oxidation State copper achieves electronic configuration of zinc + 2
00
+ 2
+ 1
+ 3
Which of the following is a typical transition metal
Scandium
yttrium
Radium
Cobalt
Which of the following is a non typical transition metal
Chromium
Zinc
Manganese
Iron
What is the sequence of electron pick up and removal from the 4S orbital in a transition metal in the 3D seroes
Enter first and leaves after 3D electrons removal
Enters after 3D electrons leaves after 3D electrons
Enters after 3d electrons leaves first
Enters first leaves first
Which one pair has the same Oxidation State of iron
Feso4 and fecl4
Fecl4 and fecl3
Fe2so43 and feso4
Feso4 and fecl2
The number of unpaired electrons present in fe ions is
+1
+2
+5
0
Energy difference of D orbitals varies from
Atom to atom
ion to ion
electron to electron
Proton to proton
And the electronic configuration of chromium one electron from 4S subtitle is transferred to three D subshell because
The half filled 3D subshell is more stable than the four electrons having d subshell
The 3D orbital is of lower energy than 4S
The 4S orbital is of equal energy to 3D orbital
6 unpaired electrons make chromium more paramagnetic
Stability of copper metal is due to the filling of the orbital
Half
Completely
Partially
Quarterly
Which of the following pair has the same number of electrons in the d subshell
SC + 3, ti+3
MN + 2., fe + 3
Ti + 3, V + 3
CR + 3. Co + 2
Which of the following compound is expected to be coloured
Na2so4
Zncl2
Mgf2
Cuf2
which one of the following is the correct geometry of (mncl4)-2
square planar
trigonal bipyramid
tetrahedral
octahedral
Which of the following has a complete D subshell in cationic as well as atomic state
zinc
Titanium
Manganese
Scandium
Zinc has
Zero unpaired electrons
5 unpaired electrons
3 unpaired electrons
One unpaired electron
DD transition cannot be observed in
Chromium
Copper
Manganese
zinc
The location of transition elements is between
Lanthanides and actinides
Chalcogens and halogens
S and p block elements
D and f block elements
Which one of these possesses maximum number of unpaid electrons
MN + 2
CU + 2
Fe + 3
Both MN + 2 and fe + 3
The correct electronic configuration of MN is
(ar) 3d3 4s2
(ar) 3d4 4s2
(ar) 3d 4s2
(ar) 3d5 4s2
Oxidation number of Manganese in (MnO4 ) -2
+ 7
7
+ 6
-6
The element which gains electronic configuration of a noble gass at + 3 oxidation state is
Vanadium
Scandium
Titanium
Chromium
In complex compounds the oxidation number
greek numerals
English
Latin
Roman
The oxidation number of Central metal atom in (ni(co)4)
0
2
4
6
Which Complex show zero Oxidation state of the transition metal?
(fe(co)5)
(k3(fe(cn)6)
(k3(fe(cn)5)
(cu(nh3)4)so4
Zinc does not show variable oxidation
Its D subShell is incomplete
It's d subshell is complete
Its relatively soft metal
It has to electrons in its outermost shell
At which Oxidation state does copper achieve a noble gas configuration
0
+1
+2
+3
Number of electrons involved in DD transition of (ti(h2o)3+
1
2
3
4
The colour transition metal complexes is due to
DD transition
Ionization
Paramagnetic nature of transition elements
Loss of electron
Which of the following compounds is expected to be the catalyst for manufacturing of plastics
V2o5
Cr2o3
Ticl 4
Ethanol
the compound which has a ring in its structure is called
chelate
monodenatte
ligand
hydrate
k2(cu(cn)4) which one is correct
potassium tetra cyano cupperate
ligand is positibely charged
co-ordination number is 2
central atom is part of anionic sphere
the geometry of (fe(co)5) is
pyramidal
octahedral
bi pyramidal
square planar
What is the nature of coordination sphere
Anionic
cationic
neutral
all
sum of the charges present of the central metal atom ion and the charge on the ligandsis called
Coordination number
Coordination sphere
Oxidation number
Charge on coordination sphere
Which transition metal cells as a catalyst for oxidation of alkanes
Cobalt
Copper
Zinc
Iron
The catalyticability of transition metals comes from
Vacant D orbitals
Vacant p subshell
High charge density of cations
Variable valency
which electronic configuration can have the possibility of A Plus 7 Oxidation State
(ar) 3d5 4s2
(ar) 3d6 4s 2
(ar) 3d5 4s1
(ar) 3d10 4s2
Which of the following shows only +2 oxidation state
Scandium
Copper
Zinc
Cobalt
the octahedral geometry of complexes (co(nh3)6) 3+ has hybridization
sp3d
sp3d2
spd4
sp2d3
copper is a transition metal. its atomic number is 29. in which oxidation state does it have a partially filled orbital in d subshell?
Cu
Cu2+
Cu+
Cu-
the anomalous E of cu and cr is due to
color of ions of the metals
variable valency
stability associated with the EC
tendency to form complex formation
the paramagnetic behaviour is due to presence of
bond pairs
lone pairs
unpaired electrons
paired electrons
which has the same charge on central metal atom as coordination sphere?
k4(fe(cn6)
(co(no2)2(nh3)3)
(cu(nh3)4)so4
(mncl4)-2
the IUPAC name of na3(co(no2)6) is
sodium hexanitroso cobaltate (III)
sodium cobaltnitrate III
sodium hexanitro cobalt III
sodium hexa nitro cobaltate III
potassium dichrometae is used as an oxidizing agent in redox titrations. during reactions Cr(VI) and Cr(III). the color shift is
green to colorless
colorless to pink
pink to colorless
orange to green
the geometry of complexes depends upon the type of ___ taking place in the valence shell of tge central metal atom
protonation
hybridization
deprotonation
dissociation
oxidation state of Mn in KMno4 , K2 MnO4, MnO2, MnSO4
7
6
2
4
7
6
4
2
6
7
2
4
4
6
7
2
the total number of transition elements is
58
30
48
25
valence shell ec of Cu2+ is
5d6
3d9
3d8
3d7
what is the color of Zn+2, Ti+4 ?
green, orange
pink
colorless
deep green, blue
18. f orbital hybridization. Which of the following type of orbital hybridization shows square planar geometry?
A) sp3
B) dsp2
C) dsp3
D) d2sp3
4. Which of the following is the correct electronic configuration of gold (atomic number of Au = 79)?
A) [54 Xe] 4f14 5d10 6s1
B) [54 Xe] 4f14 5d° 6s?
C) [54 Xe]4f14 5d9 6s2
D) [s4 Xe]4fı 5d10 6s2
3. Mark the incorrect statement about transition elements of 3d-series:
A) All the elements show +2 oxidation state
B) They show variable oxidation because of the involvement of the unpaired d-electrons in addition to s-electrons
C) Fe+3 ion is more stable than Fe+2 ion
D) First four elements in the highest oxidation state use all of the s and d electrons for bonding
2. All of the following transition elements show variable oxidation state EXCEPT:
fe
cr
zn
cu
1. Which of the following is correct formula for general electronic configuration of d-block elements?
A) (n-1)d1-10ns 1-2
B) (n-1)d 10 ns2
C) (n-1)d1-5 ns 1-2
D) (n-1)d1-10 ns2
8. Correct name of [Pt(OH)2(NH2)4]SO4 is:
A) Tetraammine dihydroxo-platinum (IV) sulphate
B) Dihydroxo tetraammine-platinum (V) sulphate
C) Tetra-ammine dihydroxo-platinum (II) sulphate
D) Dihydroxo tetraammine-platinum (IV) sulphate
7. Transition elements mostly show
A) Linear
B) Trigonal bipyramid
C) Square planar
D) Octahedral
6. Which of the following complex ions shows tetrahedral geometry?
A) [MnCl4]2
B) [Cu(NH3)4]+2
C) [Fe(CN)6]4
D) [Tf6]-2
5. Transition elements show all of the following characteristic properties EXCEPT:
A) They are good conductor of heat and electricity
B) Those metals which form coloured compounds must have at least one unpaired electron in d-sub shell
C) Their ions and compounds are coloured in the solid state only
D) They act as a catalyst
choose the ossible geometries for complexes with coordination number 6
octahedral
tetragonal
square planar geometry
trigonal prism
linear
14. Which of the following 3d-series elements shows the highest oxidation state in its compounds?
A) Cr
B) Cu
C) Zn
D) Fe
13. 3d-series of transition elements contains elements in the range:
A) Sc --- Zn
B) La --- Hf
C) Y ------Cd
D) Ce ---- Lu
12. The catalysts used for the following processes are correctly matched EXCEPT:
A.
B.
C.
D.
11. In [Ti(H2O)6)]3+, ____ light is absorbed, while most of the blue and red lights are transmitted, therefore the solution of [Ti(H2O)6]3+ ions looks violet in colour. Violet is a complementary colour of yellow
yellow
green
blue
red
10. In copper sulphate pentahydrate (CuSO4.5H2O), the number of water molecules attached with Cu+2 ion through coordinate covalent bond is:
2
3
4
5
Which of the following transition elements has maximum number of unpaired electrons in its ground state?
A) Mn
B) Cr
C) Fe
D) Ni
17. All of the following are monodentate ligands EXCEPT:
A) OH
B) CN
C) CO
D) N2H4
16. The number of lone pair of electrons provided by the ligands to the central transition metal atom or ion is called:
A) Oxidation number
B) Coordination number
C) Effective atomic number
D) Coordination complex.
15. Which of the following transition metal ions has five unpaired electrons in 3d sub-shell?
A) Zn*2
B) Sc+3
C) Mn+2
D) Cr+3
37.In an octahedral geometry having coordination number 6, which of the following shows trans-position:
A) 1-2
B) 1-3
C) 3-4
D) 1-4
22. Elements of 3d-series generally show which of the following stable oxidation states?
A) +1, +2
B) +2, +3
C) +4, +5
D) +6, +7
21. Which of the following elements are used as a catalyst in the chemical reactions?
A) Alkali metals
B) Transition elements
C) Alkaline earth metal
D) Element which form border line compounds
23. The correct formula of Tetraammine aqua bromocobalt (III) nitrate is:
A) Co[Br(NH3)4(H2O)](NO3)2
B) Co[Br(NH3)4(H2O)Br](NO3)2
C) Co[Br(H2O)(NH3)4] (NO3)2
D) Co[(NO)(NH3)4(H2O)Br](NO3)2
24. Pair of transition elements which show abnormal electronic configuration in the first 3d-series are:
A) Cr and Ni
B) Fe and Ni
C) Cr and Cu
D) Cu and Co
26. The central transition metal atom along with ligands is called:
A) Complex ion
B) Ligand
C) Coordination sphere
D) Complex compound
28. Transition elements show all of the following properties EXCEPT:
A) They are all metals in true sense
B) They show variable oxidation state
C) They have high melting and boiling points
D) Their ionization energy is less than that of IIA group elements.
29. Which of the following statements is correct about covalent radii in 3d-series of transition elements?
A) It decreases continuously
B) First it decreases then increases rapidly
C) First it decreases in the start, constant in the middle and then increases at the end of series
D) It remains almost constant in the series
31. Which groups of transition elements are known as non-typical transition elements?
A) IIB and IIIB
B) IB and IVB
C) IVB and VB
D) VIB and VIIB
30. In moving from left to right in any transition series, the number of unpaired electrons increases upto groups:
A) IIB and IIIB
B) IVB and VB
C) VB and VIB
D) VIB and VIIB
32. All of the following non-metals enter in the interstices of transition metals and impart useful features to them EXCEPT:
A) H
B) B
C) N
D) Br
34. Which of the following transition metal ions shows the strongest paramagnetic behaviour?
Fe+3
Fe+2
Mn+2
Fe+1
33. Mark the incorrect statement about the general characteristic features of 3d-series of transition metals:
35. In alloy steels (substitutional alloys), which of the following transition metal cannot be substituted in place of iron:
A) Cr
B) Ni
C) Mn
D) Ti
36. The type of structural isomerism which occurs when the counter ion (the ion outside the square bracket) is itself a potential ligand:
A) lonization isomerism
B) Coordination isomerism
C) Coordination isomerism
D) Solvate isomerism
38. Coordination compounds show which of the following principal types of isomerism:
A) Stereoisomerism
B) Structural isomerism
C) Both A and B,
D) Neither A nor B
8. In which compound, the oxidation state of Mn is highest:
KMnO4
MnO
MnO2
K2MnO4
In pig iron the concentration of C-atom is
0.12 --- 0.25%
2.5 --- 4.5%
2.0 --- 4.0%
0.25 --- 2.5%
When an active metal like Al comes in contact with less active element like Cu then it produces
A.dry cell
B.galvanic cell
C.electrolytic cell
D.a and b
color of ni +2?
green
yellow
pink
blue
color of ferrous and ferric ion?
green, blue
green, yellow
yellow, green
green, orage
color of cu+2?
blue
pink
red
green
color of V+3?
green
blue
red
pink
color of cobalt +2
pink
yellow
green
blue
what color is shown by Cr+3
green
blue
colorless
pink
Group VIB of transition elements contains
A) Fe, Ru, Os
B) Mn, Te, Re
C) Zn, Cd, Hg
D) Cr, Mo, W
Type of hybridization in PCl5 is:
sp3
dsp3
sp2
dsp2
The trace metal present in insulin is:
iron
zinc
copper
manganese
4. Which of the following cation has maximum unpaired electrons:
NI+2
co+2
Mn+2
Fe+2
The black image on an exposed and developed photographic film is composed of:
Ag
AgBr
Ag[(SrO3)2]–
Ag2O
Iron obtained from blast furnace is known as
Cast iron
pig iron
wrought iron
steel
lanthanides and actinides resemble in?
Oxidation state
electronic configuration
Formation of complexes
ionization state
sodium thiosulphate is used in photography because of its
reducing nature
oxidizing nature
complex forming behaviors
reaction with light
pure form of iron is
grey iron
wrought uron
steel cast iron
white cast iron
one of the constituents of german silver is
cu
al
ag
mg
Which one of these has the lowest % of carbon
cast iron
steel
wrought iron
all have the same percentage
galvanization is deposition
of zn on fe
of ti on fe
of al on fe
ON FU ON FE
matte is an impure substance of
copper
al
zinc
fe
