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

The lanthanides contraction is responsible for the fact that

Question # 2

Corrosion of iron can be prevented by coating the surface with

Question # 3

AgCl is soluble is

Question # 4

Which of the following compounds gives red precipitate with AgNO3?

Question # 5

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

Question # 6

Potassium hexacyanoferrate (II) has the formula

Question # 7

In the manufacture of iron from haematitie,limestone is added to act as

Question # 8

Cu2+with d9electronic configuration appears

Question # 9

Property of transition element is :

Question # 10

Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is

Question # 11

Which is used to identify Cu2+ions

Question # 12

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

Question # 13

The compound which gives oxygen on moderate heating is

Question # 14

The amount of Ni in stainless steel is

Question # 15

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

Question # 16

The number of unpaired electrons in Mn2+is

Question # 17

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

Question # 18

In physical and chemical properties, transition elements show

Question # 19

f-Block elements are also called

Question # 20

Which of the following d-block elements can show the highest oxidation number in its compounds

Question # 21

Which of the following is a non-typical transition elements

Question # 22

The total number of transition elements is:

Question # 23

Bessemer converter is used in the manufacture of

Question # 24

Which one of the following metal ions is colourless?

Question # 25

The colour of transition metal complexes is due to:

Question # 26

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

Question # 27

Most transition elements show

Question # 28

Which period starts from 11Sc to 30Zn ?

Question # 29

Rusting can be avoided by :

Question # 30

3-d series elements are present in:

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following element is responsible for oxidation of water to O2in biological process?
A. Fe
B. Mn
C. Cu
D. Mo
2 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
3 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
4 The number of unpaired electrons in ferrous ion ( Z - 26) is
A. 3
B. 2
C. 4
D. 5
5 Which of the following is non-typical transition element?
A. Cr
B. Mn
C. Zn
D. Fe
6 The Mn3+has ______ color
A. Violet
B. Green
C. Red/brown
D. No color
7 Transition elements form which type of bond
A. Ionic bonds only
B. Covalent bonds only
C. Ionic and covalent bonds
D. Polar bonds
8 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
9 In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because
A. The 3rd orbital is of lower energy than 4s
B. The 4s orbital is of equal energy to 3d orbital
C. The half filled d-subshell is more stable than incomplete d-sub shell
D. 6 unpaired electrons make Cr more paramagnetic
10 Which of the following metal exhibits more than one oxidation?
A. Na
B. Mg
C. Fe
D. Al
s

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