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

Across the lanthanide series, the basicity of the lanthanide hydroxides

Question # 2

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

Question # 3

Which of the following is a transition element

Question # 4

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

Question # 5

Rusting of iron is catalysed by

Question # 6

The total number of transition elements is

Question # 7

Out of 110 known elements, transition elements are

Question # 8

Group VIB of transition elements contains

Question # 9

Which element belong to 5d series

Question # 10

The colour of transition metal complexes is due to

Question # 11

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 12

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

Question # 13

CuSO4. 5H2O is used to prepare

Question # 14

Which period starts from 11Sc to 30Zn ?

Question # 15

Potassium chromate has formula

Question # 16

Which is in differnet phase form other metals

Question # 17

5-d series is in the period :

Question # 18

The number of unpaired electrons in Mn2+is

Question # 19

How many mole of acidfied FeSO4solution can be completely oxidized by one mole of KMNO4?

Question # 20

Which metal is used for catalytic hydrogenation of oils

Question # 21

Which one of the following has highest density

Question # 22

The Mn3+has ______ color

Question # 23

Which element has 4 unpaired electrons in 3d-orbital

Question # 24

The lanthanides contraction is responsible for the fact that

Question # 25

The color of Cr3+ion is

Question # 26

The iron obtained from blast furnace is

Question # 27

Which is used to identify Cu2+ions

Question # 28

In the extraction of iron, slag is produced which is

Question # 29

Bronze is an alloy which contains

Question # 30

The total number of transition elements is:

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 In physical and chemical properties, transition elements show
A. Similarities
B. Dissimilarities
C. Both of these
D. Somestimes similarities, sometimes dissimilarities
2 Which of the following is a carbonate are?
A. Pyrolusite
B. Malchite
C. Diaspore
D. cassiterite
3 Interstitial compounds have
A. Half formula
B. Fixed formula
C. Indefinite formula
D. None
4 f-Block elements are also called
A. Non typical transition elements
B. Outer transition elements
C. Normal transition elements
D. Inner transition elements
5 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these
6 Bronze is an alloy which contains
A. 60% cu
B. 70% cu
C. 80% cu
D. 99% cu
7 Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because
A. It less reactive than copper
B. A layer of sulphates is deposited on it
C. An inert layer of iron oxide is deposited on it
D. All valence electrons of iron are consumed
8 What is the shape of Fe(CO)5molecule?
A. Tetrahedral
B. Octahedral
C. Trigonal bipyramidal
D. Square pyramidal
9 Misch mental is
A. An alloy of Aluminium
B. A mixture of chromium and lead chromate
C. An alloy of lanthanoid metals
D. An alloy of copper
10 [Co(NH3)6]3+will form ______ structure
A. Square planar
B. Tetrahedral
C. Octahedral
D. Trigonal bipyamidal

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