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

d-block elements are also called :

Question # 2

Which element does not belong to 4d series

Question # 3

Which of the following is a transition element

Question # 4

Corrosion of iron can be prevented by coating the surface with

Question # 5

Which is non typical transition element :

Question # 6

Which of the following is not correct about transition metals?

Question # 7

Out of 110 known elements, transition elements are

Question # 8

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

Question # 9

Which of the following compounds gives red precipitate with AgNO3?

Question # 10

Rusting of iron is catalysed by

Question # 11

Which of the following is a typical transition metal

Question # 12

Bell metal is an alloy of Sn and

Question # 13

The oxidation state of Fe in [Fe(CN)6]3-is

Question # 14

Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound

Question # 15

The Mn3+has ______ color

Question # 16

Besides Zn and Cu , German silver contains the metal

Question # 17

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

Question # 18

f-Block elements are also called

Question # 19

Which metal is used for catalytic hydrogenation of oils

Question # 20

Content of carbon in steel is:

Question # 21

The compound which gives oxygen on moderate heating is

Question # 22

Which is not a bidentate ligand

Question # 23

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

Question # 24

Solubility of KMnO4 at higher temperature is:

Question # 25

Which of the following is a typical transition metal?

Question # 26

Group VI-B of transition elements contains:

Question # 27

Which of the following transition metal ions will have definite value of magnetic moment?

Question # 28

High purity copper metal is obtained by

Question # 29

Coordination number of Pt in [PtCI(NO2) (NH3)4]2+is

Question # 30

Which of the following elements does not show variable oxidation states?

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Sr.# Question Answer
1 The oxidation number of Ni in [Ni(CO)4] is
A. +1
B. 0
C. +4
D. -4
2 IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are
A. Non typical transition element
B. Typical transition element
C. Normal elements
D. Inner transition element
3 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state
4 Misch mental is
A. An alloy of Aluminium
B. A mixture of chromium and lead chromate
C. An alloy of lanthanoid metals
D. An alloy of copper
5 The number of unpaired electrons in Mn2+is
A. 5
B. 4
C. 3
D. 2
6 The Mn3+has ______ color
A. Violet
B. Green
C. Red/brown
D. No color
7 The free spaces between the metal atoms and its crystal lattice are called
A. Valance spaces
B. Empty spaces
C. Interstices
D. None
8 Transition elements are called so because:
A. Form interstital sompounds
B. have high m.p
C. In between 's' and' 'p' block elements
D. All of these
9 Steel may be manufacture by two processes which two are correct
A. Open hearth process and besemer process
B. Open hearth process and Haber process
C. Bassemer process and Haber process
D. Contact process and Haber process
10 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
11 A transition metal complex can be recognized by various terms. Which is not the proper term
A. Central metal ion
B. Coordination number
C. Ligand
D. Geometry of complex
12 Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is
A. 4
B. 5
C. 6
D. 7
13 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
14 Coordination number of Pt in [PtCl (NO2) (NH3)4]2-
A. 2-
B. 4
C. 1
D. 6
15 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
16 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
17 The equivalent weight of KMnO4(formula weight = M) when it is used as an oxidant in neutral medium is
A. M
B. M/2
C. M/3
D. M/5
18 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
19 In the extraction of iron, slag is produced which is
A. CO
B. FeSiO3
C. MgSiO3
D. CaSiO3
20 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
21 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these
22 The iron obtained from blast furnace is
A. Pig iron
B. Wrought ion
C. Soft ion
D. Steel
23 Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because
A. It less reactive than copper
B. A layer of sulphates is deposited on it
C. An inert layer of iron oxide is deposited on it
D. All valence electrons of iron are consumed
24 In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is
A. 3
B. 2
C. 5
D. Zero
25 Which of the following has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni3+
D. Cu+
26 The percentage of carbon in different types of iron products is in the order of
A. Cast iron > wrought iron > steel
B. Wrought iron > steel > cast iron
C. Cast iron > steel > wrought iron
D. Cast iron = steel > wrought iron
27 Bell metal is an alloy of Sn and
A. Copper
B. Iron
C. Zinc
D. Magnesium
28 [Cu[NH3)4]+2will form ______ structure
A. Square planar
B. Tetrahedral
C. Octahedral
D. Trigonal bipyramidal
29 Cu2+with d9electronic configuration appears
A. Yellow
B. Pink
C. Blue
D. Green
30 Which is used to identify Cu2+ions
A. Nitric acid
B. Sulfuric acid
C. NaOH
D. HCI

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