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

Elements in which f-orbitals are in the process of completion are called

Question # 2

Potassium chromate has formula

Question # 3

The total number of rare earth elements is

Question # 4

Which is in differnet phase form other metals

Question # 5

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

Question # 6

Which is used to identify Cu2+ions

Question # 7

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

Question # 8

3-d series elements are present in:

Question # 9

The total number of d-bock transition element is

Question # 10

Most transition elements show

Question # 11

Which is the correct electronic configuration of Cr - 24

Question # 12

Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the

Question # 13

Mercury is the only metal which is liquid at 0°C. this is due to its

Question # 14

d-block elements are also called :

Question # 15

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

Question # 16

Which one of the following has highest density

Question # 17

Which of the following is a non-typical transition elements

Question # 18

The iron obtained from blast furnace is

Question # 19

Electronic configuration of Cu+2is

Question # 20

Choose the correct answer of transition elements?

Question # 21

Which element does not belong to 4d series

Question # 22

Which element does not belong to 3d transition series

Question # 23

Which element belong to 5d series

Question # 24

Which is non typical transition element :

Question # 25

Among the lanthandes the one obtained by synthetic method is

Question # 26

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

Question # 27

In the extraction of iron, slag is produced which is

Question # 28

Which element has 4 unpaired electrons in 3d-orbital

Question # 29

The colour of transition metal complexes is due to

Question # 30

Group VI-B of transition elements contains:

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
2 The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal
A. sp3
B. dsp2
C. dsp3
D. d2sp3
3 Oxalic acid oxidizes to:
A. CO
B. CO2
C. Oxalates
D. None of these
4 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these
5 Series starting from57La,42Hf -80Hg is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
6 4-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 5-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
9 In the manufacture of iron from haematitie,limestone is added to act as
A. Flux
B. A reducing agent
C. Slag
D. An oxidizing agent
10 Which of the following is not an element?
A. Graphite
B. Diamond
C. 22-Carat gold
D. Rhombic sulphur

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