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

Question # 2

5-d series is in the period :

Question # 3

An oxidixing agent

Question # 4

Which element has 4 unpaired electrons in 3d-orbital

Question # 5

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

Question # 6

CuSO4. 5H2O is used to prepare

Question # 7

6-d series is in the period :

Question # 8

[Co(NH3)6]3+will form ______ structure

Question # 9

Which element does not belong to 4d series

Question # 10

Which of the following elements does not show variable oxidation states?

Question # 11

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

Question # 12

The coordination number of iron in [Fe(H2O)6]3+is

Question # 13

Oxalic acid oxidizes to:

Question # 14

The lanthanides contraction is responsible for the fact that

Question # 15

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

Question # 16

Corrosion may be prevented by

Question # 17

3-d series elements are present in:

Question # 18

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

Question # 19

Among the lanthandes the one obtained by synthetic method is

Question # 20

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 # 21

[Zn(NH3)4]3+possess geometry

Question # 22

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 # 23

Across the lanthanide series, the basicity of the lanthanide hydroxides

Question # 24

Bell metal is an alloy of

Question # 25

Out of 110 known elements, transition elements are

Question # 26

The number of unpaired electrons in Fe3+(Z = 26) are

Question # 27

What are alloys

Question # 28

Content of carbon in steel is:

Question # 29

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

Question # 30

The Mn3+has ______ color

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 The colour of transition metal complexes is due to:
A. d-d transitions of electorns
B. Paramagnetic nature of transition
C. Ionization
D. Loss of s-electrons
2 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
3 Which alloy contains 50% copper, 25% zinc and 25% nickel
A. German silver
B. Gun metal
C. Bell metal
D. Brass
4 Which of the following transition metal ions will have definite value of magnetic moment?
A. Se3+
B. Ti3+
C. Cu+
D. Zn2+
5 Coordination number of Pt in [Pt Cl(NO2) (NH3)]2-is
A. 2-
B. 4
C. 1
D. 6
6 5-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
7 Which of the following compounds gives red precipitate with AgNO3?
A. Kl
B. K2CrO4
C. NaBr
D. NaNO3
8 Which of the following is obtained when Fe reacts with dil. HNO3?
A. N2O
B. NO
C. NO2
D. None of these
9 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
10 High purity copper metal is obtained by
A. Carbon reduction
B. Hydrogen reduction
C. Electrolytic reduction
D. Thermite reduction

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