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

00:00
Question # 1

Which of the following is used as disinfectant

Question # 2

Solubility of KMnO4 at higher temperature is:

Question # 3

Which element does not belong to 4d series

Question # 4

What are alloys

Question # 5

Electronic configuration of Cu+2is

Question # 6

6-d series is in the period :

Question # 7

E.D.T.A is

Question # 8

3-d series elements are present in:

Question # 9

Which of the following is not an element?

Question # 10

German silver does not contain

Question # 11

Steel may be manufacture by two processes which two are correct

Question # 12

The total number of d-bock transition element is

Question # 13

Which is the correct electronic configuration of Cr - 24

Question # 14

5-d series is in the period :

Question # 15

Potassium chromate has formula

Question # 16

What is wrong about transition metals?

Question # 17

Which alloy contains 50% copper, 25% zinc and 25% nickel

Question # 18

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

Question # 19

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

Question # 20

The oxidation number of Ni in [Ni(CO)4] is

Question # 21

Which metal is used for catalytic hydrogenation of oils

Question # 22

The number of unpaired electrons in Mn2+is

Question # 23

Most common oxidation states shownby cerium are

Question # 24

IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are

Question # 25

Stainless steel contains Cr upto

Question # 26

Corrosion may be prevented by

Question # 27

The protection of steel by chrome plating is due to

Question # 28

Transition elements are called so because:

Question # 29

Group VIB of transition elements contains

Question # 30

Which element has 4 unpaired electrons in 3d-orbital

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 What is the shape of Fe(CO)5molecule?
A. Tetrahedral
B. Octahedral
C. Trigonal bipyramidal
D. Square pyramidal
2 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
3 AgCl is soluble is
A. Aqua regia
B. H2SO4
C. HCl
D. NH3
4 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
5 Which is used to identify Cu2+ions
A. Nitric acid
B. Sulfuric acid
C. NaOH
D. HCI
6 The elements in which d or f-orbitals are incomplete are called
A. Transition elements
B. Typical elements
C. Actinides
D. lanthanides
7 The oxidation state of Fe in [Fe(CN)6]3-is
A. +2
B. +3
C. +4
D. -3
8 Coordination sphere may be:
A. Cationic
B. Anionic
C. Neutral
D. All above
9 Group VI-B of transition elements contains:
A. Zn, Cd, Hg
B. Fe ,Ru ,Os
C. Cr, Mo ,W
D. Mn, Te, Re
10 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

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