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

Bell metal is an alloy of Sn and

Question # 2

Which of the following metal exhibits more than one oxidation?

Question # 3

In the extraction of iron, slag is produced which is

Question # 4

The total number of d-bock transition element is

Question # 5

Which period starts from 11Sc to 30Zn ?

Question # 6

The total number of rare earth elements is

Question # 7

The percentage of carbon in different types of iron products is in the order of

Question # 8

Which of the following is a not typical transition element

Question # 9

3-d series elements are present in:

Question # 10

Maximum variable oxidation state is of:

Question # 11

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

Question # 12

Titanium is used as a catalyst in

Question # 13

Steel may be manufacture by two processes which two are correct

Question # 14

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 # 15

5-d series is in the period :

Question # 16

The protection of steel by chrome plating is due to

Question # 17

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

Question # 18

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

Question # 19

Potassium hexacyanoferrate (II) has the formula

Question # 20

Which is used to identify Cu2+ions

Question # 21

Bell metal is an alloy of

Question # 22

Which element does not belong to 3d transition series

Question # 23

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

Question # 24

Rusting can be avoided by :

Question # 25

All 3d series elements show variable oxidation states. The one shown by all 3d elements is

Question # 26

Electronic configuration of Cu+2is

Question # 27

Mercury is the only metal which is liquid at 0°C. this is due to its

Question # 28

The color of Cr3+ion is

Question # 29

The percentage of carbon in different types of iron products is in the order of:

Question # 30

What is wrong about transition metals?

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
2 Rusting can be avoided by :
A. Making alloys
B. Tin or Zinc plating
C. Use of enamel
D. All of these
3 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
4 The percentage of carbon in different types of iron products is in the order of
A. Cast iron > wrought iron > steel
B. Wrought iron > steel > cast iron
C. Cast iron > steel > wrought iron
D. Cast iron = steel > wrought iron
5 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
6 Which of the following has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni3+
D. Cu+
7 Which has the largest radius?
A. CO3+
B. Mn3+
C. Fe3+
D. Cr3+
8 [Ti(H2O)6]+3ion absorbs colour:
A. Blue
B. Yellow
C. Green
D. Red
9 Potassium ferrocyanide is a
A. Mixed salt
B. Double salt
C. Complex salt
D. Normal salt
10 Transition elements are called so because:
A. Form interstital sompounds
B. have high m.p
C. In between 's' and' 'p' block elements
D. All of these

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