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

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

Question # 2

Which of the following is used as disinfectant

Question # 3

Transition metals mostly are

Question # 4

Oxalic acid oxidizes to:

Question # 5

The color of Cr3+ion is

Question # 6

Which is not a bidentate ligand

Question # 7

Which is the correct electronic configuration of Cr - 24

Question # 8

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

Question # 9

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

Question # 10

The amount of Ni in stainless steel is

Question # 11

The total number of rare earth elements is

Question # 12

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

Question # 13

Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the

Question # 14

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

Question # 15

Which of the following is a carbonate are?

Question # 16

Sodium thisoulophate is used in photography because of its

Question # 17

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

Question # 18

Content of carbon in steel is:

Question # 19

AgCl is soluble is

Question # 20

Which of the following is obtained when Fe reacts with dil. HNO3?

Question # 21

Which element does not belong to 4d series

Question # 22

Which is used to identify Cu2+ions

Question # 23

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

Question # 24

E.D.T.A is

Question # 25

Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound

Question # 26

Bronze is an alloy which contains

Question # 27

A transition element is defined as an element of 3d series

Question # 28

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

Question # 29

In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because

Question # 30

Which of the following compounds gives red precipitate with AgNO3?

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 The free spaces between the metal atoms and its crystal lattice are called
A. Valance spaces
B. Empty spaces
C. Interstices
D. None
2 The total number of inner transition elements in the periodic table is
A. 10
B. 14
C. 28
D. 30
3 d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect
A. They show variable valency
B. Their ions and compounds are coloured
C. They are good conductors of heat and electricity
D. Their compounds are diamagnetic
4 [Ti(H2O)6]+3ion absorbs colour:
A. Blue
B. Yellow
C. Green
D. Red
5 Which alloy contains 50% copper, 25% zinc and 25% nickel
A. German silver
B. Gun metal
C. Bell metal
D. Brass
6 In the extraction of iron, slag is produced which is
A. CO
B. FeSiO3
C. MgSiO3
D. CaSiO3
7 Rusting of iron is catalysed by
A. Fe
B. O2
C. Zn
D. H+
8 Which one of the following metal ions is colourless?
A. V2+
B. Cr3+
C. Zn2+
D. Ti3+
9 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
10 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state

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