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

In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is

Question # 2

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

Question # 3

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

Question # 4

Which element does not belong to 4d series

Question # 5

Content of carbon in steel is:

Question # 6

An element in +3 oxidation state has the electronic configuration (Ar) 3d3. Its atomic number is

Question # 7

Which of the following is used as disinfectant

Question # 8

The compound which gives oxygen on moderate heating is

Question # 9

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

Question # 10

The formula of curprite is

Question # 11

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

Question # 12

Among the lanthandes the one obtained by synthetic method is

Question # 13

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

Question # 14

The protection of steel by chrome plating is due to

Question # 15

Cuprous ore among the following is

Question # 16

d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect

Question # 17

f-block elements are called :

Question # 18

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

Question # 19

The equivalent weight of KMnO4(formula weight = M) when it is used as an oxidant in neutral medium is

Question # 20

Which metal is used for catalytic hydrogenation of oils

Question # 21

Besides Zn and Cu , German silver contains the metal

Question # 22

Which element has 4 unpaired electrons in 3d-orbital

Question # 23

Out of 110 known elements, transition elements are

Question # 24

The total number of transition elements is:

Question # 25

Which of the following is a typical transition metal?

Question # 26

A transition metal complex can be recognized by various terms. Which is not the proper term

Question # 27

Which is non typical transition element :

Question # 28

Stainless steel contains Cr upto

Question # 29

Rusting of iron is catalysed by

Question # 30

Interstitial compounds have

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which has the largest radius?
A. CO3+
B. Mn3+
C. Fe3+
D. Cr3+
2 Property of transition element is :
A. Low m.p and b.p
B. Parramagnetism
C. Oxidation state
D. Low binding energies
3 The Mn3+has ______ color
A. Violet
B. Green
C. Red/brown
D. No color
4 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
5 Electronic configuration of Cu+2is
A. 4S2, 3d9
B. 4s-1, 3d10
C. 4S0, 3d9
D. None of these
6 Which is not a bidentate ligand
A.
7 d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect
A. They show variable valency
B. Their ions and compounds are coloured
C. They are good conductors of heat and electricity
D. Their compounds are diamagnetic
8 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
9 Cuprous ore among the following is
A. Chalcopyites
B. Azurite
C. Cuprite
D. Malachitre
10 5-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th

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