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

The color of Cr3+ion is

Question # 2

Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements

Question # 3

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

Question # 4

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

Question # 5

Which of the following is non-typical transition element?

Question # 6

Solubility of KMnO4 at higher temperature is:

Question # 7

Which is the correct electronic configuration of Cr - 24

Question # 8

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

Question # 9

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

Question # 10

Which of the following metal exhibits more than one oxidation?

Question # 11

Steel may be manufacture by two processes which two are correct

Question # 12

The colour of transition metal complexes is due to

Question # 13

Which is non typical transition element :

Question # 14

The total number of rare earth elements is

Question # 15

Rusting can be avoided by :

Question # 16

IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are

Question # 17

[Zn(NH3)4]3+possess geometry

Question # 18

d-block elements are also called :

Question # 19

Which element has 4 unpaired electrons in 3d-orbital

Question # 20

Content of carbon in steel is:

Question # 21

Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is

Question # 22

Which of the following metals is sometimes found in native state in nature?

Question # 23

The elements in which d or f-orbitals are incomplete are called

Question # 24

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

Question # 25

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 # 26

In physical and chemical properties, transition elements show

Question # 27

Most common oxidation states shownby cerium are

Question # 28

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

Question # 29

Which of the following is a typical transition metal?

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 A transition element is defined as an element of 3d series
A. Which is metal
B. Which has one stable ion
C. Which has two stable ions
D. Which has at least one stable ion with incomplete d-orbital
2 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
3 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state
4 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
5 f-block elements are called :
A. Alkali metal
B. Alkakline earth metals
C. Transition elements
D. Electron deficient elements
6 Bell metal is an alloy of Sn and
A. Copper
B. Iron
C. Zinc
D. Magnesium
7 Across the lanthanide series, the basicity of the lanthanide hydroxides
A. Increases
B. Decreases
C. First increases and then decreases
D. First decreases and then increases
8 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
9 Besides Zn and Cu , German silver contains the metal
A. Sn
B. Ag
C. Ni
D. Mg
10 Which of the following acts as ligand
A. NH3
B. NH2-- CH2-- CH2-- NH2
C. C2O2-4
D. All these

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