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

00:00
Question # 1

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

Question # 2

[Ti(H2O)6]+3ion absorbs colour:

Question # 3

The color of Cr3+ion is

Question # 4

The protection of steel by chrome plating is due to

Question # 5

Stainless steel contains ion and carbon along with

Question # 6

Content of carbon in steel is:

Question # 7

The colour of transition metal complexes is due to

Question # 8

Transition metals form complexes due to the participation of partially filled

Question # 9

Non-formation of menisus by Hg in presence of O3is due to the formation of

Question # 10

German silver does not contain

Question # 11

The iron obtained from blast furnace is

Question # 12

The colour of transition metal complexes is due to:

Question # 13

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

Question # 14

Which is non typical transition element :

Question # 15

Series starting form 39Y to 48CD is in period:

Question # 16

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

Question # 17

Which of the following acts as ligand

Question # 18

Which of the following is not related to transition metals

Question # 19

CuSO4. 5H2O is used to prepare

Question # 20

Electronic configuration of Cu+2is

Question # 21

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

Question # 22

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

Question # 23

Out of 110 known elements, transition elements are

Question # 24

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 25

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

Question # 26

Potassium hexacyanoferrate (II) has the formula

Question # 27

Transition elements are called so because:

Question # 28

Bell metal is an alloy of

Question # 29

Corrosion of iron can be prevented by coating the surface with

Question # 30

Which of the following is not correct about transition metals?

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following is not an element?
A. Graphite
B. Diamond
C. 22-Carat gold
D. Rhombic sulphur
2 Solubility of KMnO4 at higher temperature is:
A. 5%
B. 7%
C. 15%
D. 25%
3 German silver does not contain
A. Cu
B. Zn
C. Ni
D. Mn
4 The color of Cr3+ion is
A. Violet
B. Blue
C. Pink
D. Green
5 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
6 In the extraction of iron, slag is produced which is
A. CO
B. FeSiO3
C. MgSiO3
D. CaSiO3
7 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
8 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
A. Blue
B. Red
C. Yellow
D. Mixture of blue and red or violet
9 Mercury is the only metal which is liquid at 0°C. this is due to its
A. Very high ionization energy and weak metallic bond
B. Low ionization potential
C. High atomic weight
D. High vapour pressure
10 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

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