ECAT Pre Engineering Chemistry Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 17 Transition Elements

Try The 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

Cuprous ore among the following is

Question # 2

What are alloys

Question # 3

E.D.T.A is

Question # 4

Out of 110 known elements, transition elements are

Question # 5

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

Question # 6

The iron obtained from blast furnace is

Question # 7

5-d series is in the period :

Question # 8

Which one of the following has highest density

Question # 9

The coordination number of iron in [Fe(H2O)6]3+is

Question # 10

Which of the following transition metal ions will have definite value of magnetic moment?

Question # 11

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

Question # 12

The amount of Ni in stainless steel is

Question # 13

6-d series is in the period :

Question # 14

Which element does not belong to 3d transition series

Question # 15

Series starting from57La,42Hf -80Hg is in the period:

Question # 16

The free spaces between the metal atoms and its crystal lattice are called

Question # 17

The number of unpaired electrons in Fe3+(Z = 26) are

Question # 18

The oxidation state of Fe in [Fe(CN)6]3-is

Question # 19

Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements

Question # 20

Stainless steel contains Cr upto

Question # 21

Transition elements form which type of bond

Question # 22

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

Question # 23

Non-formation of menisus by Hg in presence of O3is due to the formation of

Question # 24

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 25

Which is non typical transition element :

Question # 26

Bronze is an alloy of Cu and

Question # 27

An element in +3 oxidation state has the electronic configuration (Ar) 3d3. Its atomic number is

Question # 28

Which of the following is a transition element

Question # 29

Mercury is the only metal which is liquid at 0°C. this is due to its

Question # 30

Which of the following is not an element?

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Sr.# Question Answer
1 Which of the following is used as disinfectant
A. K2Cr2O7
B. KMnO4
C. K2MnO4
D. K2CrO4
2 Cu2+with d9electronic configuration appears
A. Yellow
B. Pink
C. Blue
D. Green
3 The number of unpaired electrons in Mn2+is
A. 5
B. 4
C. 3
D. 2
4 The total number of transition elements is:
A. 10
B. 14
C. 40
D. 50
5 Steel may be manufacture by two processes which two are correct
A. Open hearth process and besemer process
B. Open hearth process and Haber process
C. Bassemer process and Haber process
D. Contact process and Haber process
6 Which of the following is a carbonate are?
A. Pyrolusite
B. Malchite
C. Diaspore
D. cassiterite
7 The geometry of [Co(NH3)6]3+is
A. Tetrahedral
B. Square planar
C. Octahedral
D. None of these
8 Sodium thisoulophate is used in photography because of its
A. Oxidizing behaviour
B. Reducing behaviour
C. Complexing behaviour
D. Photochemical behaviour
9 Across the lanthanide series, the basicity of the lanthanide hydroxides
A. Increases
B. Decreases
C. First increases and then decreases
D. First decreases and then increases
10 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
11 Rusting of iron is catalysed by
A. Fe
B. O2
C. Zn
D. H+
12 CuSO4. 5H2O is used to prepare
A. Transition complex
B. Fehling's 'A' sol
C. Fehling's 'B' sol
D. Fehling's sol
13 Stainless steel contains ion and carbon along with
A. Ni and Cr
B. Cr and Co
C. Co and Mn
D. Mn and Ni
14 [Zn(NH3)4]3+possess geometry
A. Square plannar
B. Hexagonal
C. Tetrahedral
D. None of these
15 Mercury is the only metal which is liquid at 0°C. this is due to its
A. Very high ionization energy and weak metallic bond
B. Low ionization potential
C. High atomic weight
D. High vapour pressure
16 German silver does not contain
A. Cu
B. Zn
C. Ni
D. Mn
17 Which of the following is a not typical transition element
A. Cr
B. Mn
C. Zn
D. Fe
18 d-block elements are also called :
A. alkali metal
B. Alkaline earth metals
C. Transition elements
D. Electron deficient elements
19 Which of the following is not related to transition metals
A. They have a high tensile strength
B. They are ductile
C. They are malleable
D. They have low melting points
20 Transition metals mostly are
A. Diamagnetic
B. Paramagnetic
C. Neither diamagnetic nor paramagnetic
D. Both diamagnetic and paramagnetic
21 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
22 Which has the largest radius?
A. CO3+
B. Mn3+
C. Fe3+
D. Cr3+
23 Group VI-B of transition elements contains:
A. Zn, Cd, Hg
B. Fe ,Ru ,Os
C. Cr, Mo ,W
D. Mn, Te, Re
24 Which element belong to 5d series
A. V
B. Nb
C. Pd
D. Hf
25 Rusting can be avoided by :
A. Making alloys
B. Tin or Zinc plating
C. Use of enamel
D. All of these
26 Which is in differnet phase form other metals
A. Ni
B. Hg
C. Cd
D. Na
27 The colour of transition metal complexes is due to
A. d-d transitions of electrons
B. Para magnetic nature of transition elements
C. Ionization
D. Loss of s-electrons
28 Which is used to identify Cu2+ions
A. Nitric acid
B. Sulfuric acid
C. NaOH
D. HCI
29 6-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
30 Which of the following transition metal ions will have definite value of magnetic moment?
A. Se3+
B. Ti3+
C. Cu+
D. Zn2+

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