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

In the extraction of iron, slag is produced which is

Question # 2

Cuprous ore among the following is

Question # 3

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

Question # 4

Elements in which f-orbitals are in the process of completion are called

Question # 5

The colour of transition metal complexes is due to:

Question # 6

Turnbull's blue is a compound called?

Question # 7

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

Question # 8

Coordination number of Pt in [Pt Cl(NO2) (NH3)]2-is

Question # 9

What is the name of the comlex [Ni(CO)4]

Question # 10

Which element does not belong to 3d transition series

Question # 11

Misch mental is

Question # 12

f-Block elements are also called

Question # 13

Most common oxidation states shownby cerium are

Question # 14

Which of the following is a non-typical transition elements

Question # 15

Which of the following is not related to transition metals

Question # 16

6-d series is in the period :

Question # 17

5-d series is in the period :

Question # 18

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

Question # 19

The total number of transition elements is

Question # 20

Titanium is used as a catalyst in

Question # 21

Electronic configuration of Cu+2is

Question # 22

Which is the correct electronic configuration of Cr - 24

Question # 23

What are alloys

Question # 24

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

Question # 25

The elements in which d or f-orbitals are incomplete are called

Question # 26

Which of the following is a carbonate are?

Question # 27

Coordination number of Pt in [PtCI(NO2) (NH3)4]2+is

Question # 28

Group VIB of transition elements contains

Question # 29

AgCl is soluble is

Question # 30

CuSO4. 5H2O is used to prepare

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Sr.# Question Answer
1 Bronze is an alloy which contains
A. 60% cu
B. 70% cu
C. 80% cu
D. 99% cu
2 The color of Cr3+ion is
A. Violet
B. Blue
C. Pink
D. Green
3 Non-formation of menisus by Hg in presence of O3is due to the formation of
A. Mercuric oxide
B. Mercurous oxide
C. Mercuric chloride
D. Mercurous chloride
4 f-Block elements are also called
A. Non typical transition elements
B. Outer transition elements
C. Normal transition elements
D. Inner transition elements
5 Turnbull's blue is a compound called?
A. Ferricyanide
B. Ferrous ferricyanide
C. Ferrous cyanide
D. Ferri - Ferro cyanide
6 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these
7 Which of the following elements does not show variable oxidation states?
A. Copper
B. Iron
C. Zinc
D. Titanium
8 CuSO4. 5H2O is used to prepare
A. Transition complex
B. Fehling's 'A' sol
C. Fehling's 'B' sol
D. Fehling's sol
9 Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the
A. Reduction of Cu2+
B. Oxidation of Cu2+
C. Reduction of Fe
D. Reduction of Fe3+
10 During oxidation in k2Cr2O7, Cr VI changes to :
A. I
B. II
C. III
D. IV
11 Which element does not belong to 4d series
A. Y
B. Zr
C. Mo
D. Zn
12 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state
13 Which of the following is non-typical transition element?
A. Cr
B. Mn
C. Zn
D. Fe
14 Which of the following element is responsible for oxidation of water to O2in biological process?
A. Fe
B. Mn
C. Cu
D. Mo
15 What is the name of the comlex [Ni(CO)4]
A. Tetracarbonylnickel (o)
B. Tetracabonylnickel
C. Tetracabonylnickel (II)
D. Tetracabonylnickel (IV)
16 Bronze is an alloy of Cu and
A. Zn
B. As
C. Sb
D. Sn
17 6-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
18 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
19 Which of the following is a not typical transition element
A. Cr
B. Mn
C. Zn
D. Fe
20 An element in +3 oxidation state has the electronic configuration (Ar) 3d3. Its atomic number is
A. 24
B. 23
C. 22
D. 21
21 Rusting can be avoided by :
A. Making alloys
B. Tin or Zinc plating
C. Use of enamel
D. All of these
22 5-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
23 Potassium ferrocyanide is a
A. Mixed salt
B. Double salt
C. Complex salt
D. Normal salt
24 Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements
A. Transition elements show variable oxidation states
B. Their salts are coloured
C. They can be used as catalyst
D. All of them are metals
25 The protection of steel by chrome plating is due to
A. Cathodic protection
B. Anodic protection
C. Covering of steel surface
D. Formation of alloy with iron
26 Series starting form 39Y to 48CD is in period:
A. 4th
B. 5th
C. 6th
D. 7th
27 Group VIB of transition elements contains
A. Zn, Cd, Hg
B. Fe, Ru, Os
C. Cr, Mo, W
D. Mn, Te, Re
28 Interstitial compounds have
A. Half formula
B. Fixed formula
C. Indefinite formula
D. None
29 Which of the following transition metal ions will have definite value of magnetic moment?
A. Se3+
B. Ti3+
C. Cu+
D. Zn2+
30 The number of unpaired electrons in Fe3+(Z = 26) are
A. 5
B. 6
C. 3
D. 4

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