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

Transition elements are called so because:

Question # 2

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

Question # 3

The total number of d-bock transition element is

Question # 4

Which one of the following has highest density

Question # 5

An oxidixing agent

Question # 6

A transition element is defined as an element of 3d series

Question # 7

Which is non typical transition element :

Question # 8

Cuprous ore among the following is

Question # 9

Out of 110 known elements, transition elements are

Question # 10

What is the name of the comlex [Ni(CO)4]

Question # 11

f-block elements are called :

Question # 12

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

Question # 13

The total number of inner transition elements in the periodic table is

Question # 14

The compound which gives oxygen on moderate heating is

Question # 15

Potassium chromate has formula

Question # 16

The number of unpaired electrons in Mn2+is

Question # 17

The protection of steel by chrome plating is due to

Question # 18

Among the lanthandes the one obtained by synthetic method is

Question # 19

d-block elements are also called :

Question # 20

Maximum variable oxidation state is of:

Question # 21

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

Question # 22

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

Question # 23

The free spaces between the metal atoms and its crystal lattice are called

Question # 24

Stainless steel contains Cr upto

Question # 25

Besides Zn and Cu , German silver contains the metal

Question # 26

Which element does not belong to 3d transition series

Question # 27

Which of the following is not an element?

Question # 28

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

Question # 29

E.D.T.A is

Question # 30

The amount of Ni in stainless steel is

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Potassium chromate has formula
A. KClO3
B. K2CO3
C. K2CrO4
D. K2Cr2O7
2 In physical and chemical properties, transition elements show
A. Similarities
B. Dissimilarities
C. Both of these
D. Somestimes similarities, sometimes dissimilarities
3 What are alloys
A. A homogenous mixture of two or more elements
B. A homohenous mixture of metal and a non-metal
C. A homogenous mixture of two or more metals
D. None of the above
4 Besides Zn and Cu , German silver contains the metal
A. Sn
B. Ag
C. Ni
D. Mg
5 Which one of the following has highest density
A. Zn
B. Os
C. Ni
D. Cu
6 Group VI-B of transition elements contains:
A. Zn, Cd, Hg
B. Fe ,Ru ,Os
C. Cr, Mo ,W
D. Mn, Te, Re
7 Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is
A. 4
B. 5
C. 6
D. 7
8 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
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 Which one of the following metal ions is colourless?
A. V2+
B. Cr3+
C. Zn2+
D. Ti3+

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