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 colour of the transition metal compounds is due to

Question # 2

The total number of d-bock transition element is

Question # 3

Oxalic acid oxidizes to:

Question # 4

Which is in differnet phase form other metals

Question # 5

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

Question # 6

Potassium ferrocyanide is a

Question # 7

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 # 8

Which of the following is a typical transition metal

Question # 9

4-d series is in the period:

Question # 10

Solubility of KMnO4 at higher temperature is:

Question # 11

The protection of steel by chrome plating is due to

Question # 12

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

Question # 13

The geometry of [Co(NH3)6]3+is

Question # 14

The total number of transition elements is

Question # 15

The colour of transition metal complexes is due to

Question # 16

[Zn(NH3)4]3+possess geometry

Question # 17

Transition elements form which type of bond

Question # 18

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

Question # 19

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

Question # 20

Series starting from57La,42Hf -80Hg is in the period:

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

German silver does not contain

Question # 25

Which is the correct electronic configuration of Cr - 24

Question # 26

Which one of the following metal ions is colourless?

Question # 27

What is wrong about transition metals?

Question # 28

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

Question # 29

Which of the following is not correct about transition metals?

Question # 30

Maximum variable oxidation state is of:

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following is not correct about transition metals?
A. Their melting and boiling points are high
B. Their compounds are generally coloured
C. They can form ionic or covalent compounds
D. They do not exhibit variable valency
2 Cu2+with d9electronic configuration appears
A. Yellow
B. Pink
C. Blue
D. Green
3 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
4 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
5 Coordination number of Pt in [PtCI(NO2) (NH3)4]2+is
A. 2-
B. 4
C. 1
D. 6
6 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
7 What is the name of the comlex [Ni(CO)4]
A. Tetracarbonylnickel (o)
B. Tetracabonylnickel
C. Tetracabonylnickel (II)
D. Tetracabonylnickel (IV)
8 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
9 Rusting can be avoided by :
A. Making alloys
B. Tin or Zinc plating
C. Use of enamel
D. All of these
10 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these

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