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

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

Question # 2

The number of unpaired electrons in Mn2+is

Question # 3

The colour of the transition metal compounds is due to

Question # 4

Which of the following is not correct about transition metals?

Question # 5

German silver does not contain

Question # 6

In the extraction of iron, slag is produced which is

Question # 7

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

Question # 8

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

Question # 9

Across the lanthanide series, the basicity of the lanthanide hydroxides

Question # 10

Out of 110 known elements, transition elements are

Question # 11

Which is used to identify Cu2+ions

Question # 12

AgCl is soluble is

Question # 13

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

Question # 14

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 15

The lanthanides contraction is responsible for the fact that

Question # 16

Sodium thisoulophate is used in photography because of its

Question # 17

Misch mental is

Question # 18

Corrosion of iron can be prevented by coating the surface with

Question # 19

Besides Zn and Cu , German silver contains the metal

Question # 20

5-d series is in the period :

Question # 21

The protection of steel by chrome plating is due to

Question # 22

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

Question # 23

The iron obtained from blast furnace is

Question # 24

Which is the formula of tetra-ammine chloro-nitro platinum (IV) sulphate

Question # 25

Most common oxidation states shownby cerium are

Question # 26

Which one of the following metal ions is colourless?

Question # 27

The color of Cr3+ion is

Question # 28

d-block elements are also called :

Question # 29

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

Question # 30

Coordination number of Pt in [PtCl (NO2) (NH3)4]2-

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following elements does not show variable oxidation states?
A. Copper
B. Iron
C. Zinc
D. Titanium
2 Potassium hexacyanoferrate (II) has the formula
A. K4[Fe(CN)6]
B. K3[Fe(CN)6]
C. K2[Fe(CN)6]
D. K [Fe(CN)6]
3 The free spaces between the metal atoms and its crystal lattice are called
A. Valance spaces
B. Empty spaces
C. Interstices
D. None
4 Bell metal is an alloy of
A. Cu, Zn, and Sn
B. Cu, Zn and Ni
C. Cu and Zn
D. Cu and Sn
5 The compound which gives oxygen on moderate heating is
A. Zinc oxide
B. Mercuric oxide
C. Aluminium oxide
D. Ferric oxide
6 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
7 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
8 Which is in differnet phase form other metals
A. Ni
B. Hg
C. Cd
D. Na
9 Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is
A. 4
B. 5
C. 6
D. 7
10 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

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