ECAT Pre Engineering Chemistry Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 17 Transition Elements

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ECAT Chemistry Chapter 17 Transition Elements

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Question # 1

The percentage of carbon in different types of iron products is in the order of:

Question # 2

Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?

Question # 3

Electronic configuration of Cu+2is

Question # 4

Which of the following is not an element?

Question # 5

The geometry of [Co(NH3)6]3+is

Question # 6

The colour of the transition metal compounds is due to

Question # 7

3-d series elements are present in:

Question # 8

The amount of Ni in stainless steel is

Question # 9

A transition element is defined as an element of 3d series

Question # 10

Bell metal is an alloy of Sn and

Question # 11

Transition elements are called so because:

Question # 12

What is the shape of Fe(CO)5molecule?

Question # 13

d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect

Question # 14

Series starting form 39Y to 48CD is in period:

Question # 15

The total number of d-bock transition element is

Question # 16

[Ti(H2O)6]+3ion absorbs colour:

Question # 17

Which has the largest radius?

Question # 18

Cu2+with d9electronic configuration appears

Question # 19

The total number of rare earth elements is

Question # 20

Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because

Question # 21

The iron obtained from blast furnace is

Question # 22

The number of unpaired electrons in ferrous ion ( Z - 26) is

Question # 23

Bell metal is an alloy of

Question # 24

Which of the following is a non-typical transition elements

Question # 25

The less reactivity of transition metal is due to

Question # 26

Which is used to identify Cu2+ions

Question # 27

Which of the following element is responsible for oxidation of water to O2in biological process?

Question # 28

f-block elements are called :

Question # 29

Which of the following has the maximum number of unpaired d-electrons?

Question # 30

Potassium hexacyanoferrate (II) has the formula

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Sr.# Question Answer
1 Transition metals mostly are
A. Diamagnetic
B. Paramagnetic
C. Neither diamagnetic nor paramagnetic
D. Both diamagnetic and paramagnetic
2 Which of the following is a typical transition metal?
A. Sc
B. Y
C. Ra
D. Co
3 Which one of the following has highest density
A. Zn
B. Os
C. Ni
D. Cu
4 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
5 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
6 In the manufacture of iron from haematitie,limestone is added to act as
A. Flux
B. A reducing agent
C. Slag
D. An oxidizing agent
7 The colour of a transition metal complex is due to d-d transition The colour of the complex is the complementary of the colour absorbed. Thus [Ti(H2O6]3+abosrbs yellow light and transmits blue and red colours therefore the solution of titanium complex appears
A. Blue
B. Red
C. Yellow
D. Mixture of blue and red or violet
8 Coordination sphere may be:
A. Cationic
B. Anionic
C. Neutral
D. All above
9 Stainless steel contains ion and carbon along with
A. Ni and Cr
B. Cr and Co
C. Co and Mn
D. Mn and Ni
10 Maximum variable oxidation state is of:
A. Mn+2
B. Fe+3
C. Cr+1
D. a and b
11 The elements in which d or f-orbitals are incomplete are called
A. Transition elements
B. Typical elements
C. Actinides
D. lanthanides
12 Potassium chromate has formula
A. KClO3
B. K2CO3
C. K2CrO4
D. K2Cr2O7
13 Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?
A. [Pt(NH3)4(NO2)]SO4
B. [PtNO2Cl(NH3)4]SO4
C. [PtCl(NO2)(NH3)4]SO4
D. [Pt(NH3)4(NO2)Cl]SO4
14 Which of the following is not correct about transition metals?
A. Their melting and boiling points are high
B. Their compounds are generally coloured
C. They can form ionic or covalent compounds
D. They do not exhibit variable valency
15 f-block elements are called :
A. Alkali metal
B. Alkakline earth metals
C. Transition elements
D. Electron deficient elements
16 Which one of the following metal ions is colourless?
A. V2+
B. Cr3+
C. Zn2+
D. Ti3+
17 Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound
A. Pt(NH3)6CI4
B. Pt(NH3)5CI4
C. Pt(NH3)4CI4
D. Pt(NH3)3CI4
18 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
19 Corrosion of iron can be prevented by coating the surface with
A. Zn
B. Sn
C. Ni
D. Any of the above
20 Transition metals form complexes due to the participation of partially filled
A. f-orbitals
B. d-orbitals
C. s-orbitals
D. p-orbitals
21 AgCl is soluble is
A. Aqua regia
B. H2SO4
C. HCl
D. NH3
22 Rusting of iron is catalysed by
A. Fe
B. O2
C. Zn
D. H+
23 The total number of transition elements is:
A. 10
B. 14
C. 40
D. 50
24 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
25 Most common oxidation states shownby cerium are
A. +2, +4
B. +3, +4
C. +3, +5
D. +2, +3
26 A transition metal complex can be recognized by various terms. Which is not the proper term
A. Central metal ion
B. Coordination number
C. Ligand
D. Geometry of complex
27 Which of the following transition metal ions will have definite value of magnetic moment?
A. Se3+
B. Ti3+
C. Cu+
D. Zn2+
28 Elements in which f-orbitals are in the process of completion are called
A. Outer transition element
B. Inner transition elements
C. Non-tranistion elements
D. Radioactive elements
29 Which element has 4 unpaired electrons in 3d-orbital
A. Chromium - 24
B. Manganese - 25
C. Iron - 26
D. Cobalt - 27
30 [Zn(NH3)4]3+possess geometry
A. Square plannar
B. Hexagonal
C. Tetrahedral
D. None of these

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